From Japanese sources

Cisco ASA and FTD Face DoS Vulnerability in SSL VPN Already Exploited in the Wild

Cisco Systems has disclosed a denial-of-service vulnerability affecting its Cisco Secure Firewall ASA and Cisco Secure Firewall FTD products. The flaw, tracked as CVE-2026-76418, resides in the SSL VPN remote access feature and carries a CVSS v3.1 base score of 8.6, rated High severity. Exploitation occurs when secondary authentication is configured on tunnel groups, allowing an attacker to send a crafted request that forces a device reboot without requiring authentication. Cisco confirmed active exploitation of the issue in October 2026. Security updates addressing the vulnerability are now available for both affected product lines. The advisory recommends immediate application of the patches to prevent service disruption.

Critical Pre-Auth RCE Vulnerability CVE-2026-118633 Affects All Sophos UTM Versions, Manual Patch Required After EOL

Sophos has disclosed a critical remote code execution vulnerability in its legacy Sophos UTM security gateway product. The flaw, tracked as CVE-2026-118633, carries a CVSSv4.0 base score of 9.2 and is rated Critical. It allows unauthenticated attackers to execute arbitrary commands as root by triggering a race condition through repeated attacks against the email proxy when scanning is enabled. Although the product reached end-of-life, Sophos released a manual patch that users must apply themselves because automatic updates are no longer available. The company urges immediate patching for any deployments still using the email protection feature and recommends migration to the supported Sophos Firewall. The issue was reported through Sophos’s bug bounty program by an external researcher.

Google Fixes 52 Vulnerabilities in Chrome Including Four Critical Issues

Google has released security updates for its Chrome browser that address a total of 52 vulnerabilities. Four of these flaws received the highest severity rating of Critical. The updates were issued on October 27, 2026, for Windows, macOS, and Linux platforms. The critical vulnerabilities include memory corruption in the file system, input validation issues in the file API, problems in the Skia graphics library, and a Use After Free flaw in the Layout component. Specific CVEs patched are CVE-2026-118306, CVE-2026-118331, CVE-2026-118348, and CVE-2026-118344. The remaining 48 vulnerabilities received lower severity ratings but were still addressed in the same release.

CISA Adds Brotli and Adobe Commerce Flaws to Known Exploited Vulnerabilities Catalog

The U.S. Cybersecurity and Infrastructure Security Agency has added two vulnerabilities to its Known Exploited Vulnerabilities catalog after confirming active exploitation in the wild. CVE-2026-111497 affects Google’s Brotli data compression library and can lead to code execution, information disclosure, or denial of service when specially crafted compressed data is processed. The flaw impacts any software that incorporates the Brotli decoder for decompression tasks, prompting vendors to release updates. CVE-2026-48356 resides in the file upload functionality of Adobe Commerce and Magento, allowing attackers to exploit improper handling during upload operations. CISA issued the alert on October 27, 2026, urging organizations to apply patches immediately to mitigate ongoing attacks. Related advisories also reference Brotli fixes in PHP and other products that bundle the library.

Windows PHP Updated to Patch Critical Brotli Vulnerability CVE-2026-111497

The PHP development team has released updated Windows builds of PHP that bundle a patched version of the Brotli compression library. The update addresses CVE-2026-111497, a critical out-of-bounds write flaw in Google's Brotli decoder that can lead to remote code execution, information disclosure, or denial of service. The vulnerability carries a CVSS v4.0 base score of 9.2 and is rated Critical. It affects PHP environments where the cURL extension has automatic decompression of HTTP responses enabled, allowing Brotli decoding to occur. Although cURL automatic decompression is disabled by default, applications or HTTP client libraries may enable it. The fix updates the bundled Brotli component to version 1.2.1 in the releases PHP 8.5.12-1, 8.4.27-1, 8.3.36-1, and 8.2.35-1 published on October 26.

Apple Releases iOS 27.2 and iPadOS 27.2, Patching 163 Vulnerabilities Including Exploited Flaws in Older Versions

Apple has issued security updates for iOS and iPadOS, addressing a wide range of vulnerabilities across current and legacy operating systems. The iOS 27.2 and iPadOS 27.2 releases fix 163 CVEs affecting WebKit, the kernel, and image processing components. Older branches received targeted patches, with iOS 26.7.2 resolving 134 issues and iOS 18.7.11 addressing three vulnerabilities that include an actively exploited flaw. Specific fixes cover remote code execution risks in WebKit and ImageIO, plus sandbox bypasses. The updates were published on October 26, 2026, and apply to both iPhone and iPad devices. Apple also published detailed security content advisories for each branch.

CISA Adds PHP2Shell Flaws CVE-2026-109618 and CVE-2026-109619 to KEV Catalog After Confirmed Exploitation

The U.S. Cybersecurity and Infrastructure Security Agency has confirmed active exploitation of two remotely exploitable vulnerabilities in PHP collectively known as PHP2Shell. CVE-2026-109618 stems from improper handling during memory exhaustion, while CVE-2026-109619 involves use-after-free issues in internal state management. Both flaws allow unauthenticated remote code execution and pose elevated risk to any PHP environment processing external requests such as web servers. PHP development teams released patches on October 21 for supported branches including PHP 8.5.12, 8.4.27, 8.3.36 and 8.2.35, along with source-level fixes for end-of-life versions 7.4, 8.0 and 8.1. CISA has set a three-day remediation deadline of October 29 for U.S. federal agencies and requires verification that systems have not been compromised.

Critical CVE-2026-111497 Out-of-Bounds Write Flaw in Google Brotli Decoder Impacts Broad Range of Environments

A severe vulnerability has been identified in the Google-developed Brotli decoder used for decompressing data in web communications and other applications. The flaw, tracked as CVE-2026-111497, allows out-of-bounds writes when processing specially crafted compressed data, potentially enabling arbitrary code execution, information disclosure, or denial of service. It carries a CVSS v4.0 base score of 9.2 and is rated Critical. Google has released patched versions 1.2.1, 1.1.1, and 1.0.10 of the library. Node.js incorporated the fix in its updates, while Microsoft issued an out-of-band patch for .NET on October 25, 2026, to address the issue. The vulnerability affects any environment relying on the Brotli C implementation for data decompression.

Microsoft Issues Out-of-Band .NET Security Updates Fixing Brotli Buffer Overflow and Other Flaws

Microsoft has released out-of-band security updates for .NET 10, .NET 9, and .NET 8 to address multiple vulnerabilities. The patches cover two newly identified issues and complete remediation for two additional flaws that received incomplete fixes during the October 13 monthly update cycle. One critical vulnerability, CVE-2026-111497, affects the Brotli compression library and can lead to information disclosure, denial of service, or privilege escalation when processing crafted compressed data. A second issue, CVE-2026-114148, enables local privilege escalation in Linux distribution packages for ASP.NET Core due to improper ownership handling. Microsoft also reissued fixes for remote code execution vulnerabilities CVE-2026-70197 and CVE-2026-102870. Organizations are advised to apply the updates immediately, including rebuilding and redistributing applications in container or embedded environments.

Top Cybersecurity Articles October 18-24 2026: GitLab, nginx, PHP and Node.js Flaws Dominate

Security NEXT published its weekly ranking of the ten most-read articles between October 18 and October 24 2026. The list is led by a critical GitLab vulnerability that also received back-port fixes for older branches. Multiple high-severity issues in the nginx web server, including three rated critical, took second place. PHP disclosed several serious flaws with an update scheduled for October 21, while Node.js prepared a security release for the same date. Additional entries covered actively exploited Fortinet and BeyondTrust vulnerabilities, Chrome 156 fixes for 353 issues, and U.S. government guidance urging immediate patching of PHP flaws or taking systems offline.

Critical SQL Injection Flaw in Arista VCO Already Exploited in Attacks

Arista Networks disclosed a critical SQL injection vulnerability in its VeloCloud Orchestrator product used for SD-WAN network management. The flaw, tracked as CVE-2026-114625, carries a CVSS v4.0 base score of 9.4 and a CVSS v3.1 score of 9.9, placing it in the highest severity category. Exploitation requires network access to the management interface and an authenticated session with Enterprise Read Only privileges or higher, after which attackers can escalate rights to reach internal management functions and compromise managed systems and data. The vendor has already observed active exploitation of the issue in the wild. Patches are available in versions 6.4.2.12, 6.1.3.10, and 5.2.3.18, and customers are urged to apply the updates immediately.

Malicious Code Injected into LiteLLM Open Source AI Package via Supply Chain Attack

The open-source generative AI tool LiteLLM had malicious code inserted into its official distribution packages, enabling credential theft and remote code execution. The compromise affected version 1.107.0 released on October 21, 2026, and was delivered through legitimate channels in a classic software supply chain attack. Seven malicious wheel files were uploaded to PyPI, while official container images on Docker Hub and GitHub Container Registry were also tainted. Security firm JFrog discovered that the malware steals a wide range of secrets including cloud credentials, SSH private keys, browser-stored passwords, development tokens, and AI service API keys from LiteLLM's database. The code also supports execution of externally fetched payloads and abuses Python's startup mechanisms to run even when the application itself is not loaded. This marks the second supply chain incident involving the project in 2026, following a separate event in March.

Node.js Addresses 10 Vulnerabilities Including High-Severity RCE Risk in Brotli Decompression

The Node.js development team disclosed ten vulnerabilities across multiple versions of the JavaScript runtime on October 21, 2026. Four of the issues received a High severity rating, with one carrying a remote code execution risk through improper handling of Brotli-compressed data. The flaw tracked as CVE-2026-111497 affects Node.js 26.x, 24.x, and 22.x branches and stems from out-of-bounds memory writes during decompression. Additional High-severity problems involve DNS name resolution truncation when NUL characters are present and hostname verification bypasses in TLS certificate validation. The project also resolved three Medium and three Low severity issues related to certificate validation, snapshot entropy reuse, and file-access permission checks. Updated releases Node.js 26.12.1, 24.22.1, and 22.23.4 incorporate fixes for both the core issues and vulnerabilities in bundled components such as c-ares, OpenSSL, SQLite, and Undici. Users of unsupported older branches are advised to migrate to currently maintained versions.

HPE Discloses 72 Vulnerabilities in AOS-10 and AOS-8 Wireless LAN Operating Systems, 33 Rated Critical

Hewlett Packard Enterprise has published a security advisory detailing 72 vulnerabilities affecting its wireless LAN operating systems AOS-10 and AOS-8. The flaws impact mobility controllers, gateways, access points, and virtual machines running these platforms. Thirty-three of the issues received the highest severity rating of Critical, with eight vulnerabilities scoring the maximum CVSSv3.1 base score of 10.0. Specific examples include a buffer overflow tracked as CVE-2026-79847 in AOS-10, plus command injection and SQL injection flaws in AOS-8 that allow unauthenticated remote code execution. No exploitation of these vulnerabilities has been observed at the time of disclosure. The advisory was released on October 22, 2026, and organizations are urged to apply available patches promptly.

PHP Foundation Reveals Two Critical RCE Vulnerabilities Fixed After 2024 Discovery Delays

The PHP Foundation has disclosed details surrounding two severe remote code execution vulnerabilities in PHP that were addressed in updates released on October 21, 2026. The issues, tracked as CVE-2026-109618 and CVE-2026-109619, affect memory management and error handling routines used in nearly every request. Although signs of one flaw were identified during an external audit in 2024, resource constraints and prioritization of other issues delayed remediation. The foundation had planned a coordinated disclosure, but information leaked prematurely, causing confusion among stakeholders. Updated versions PHP 8.5.12, 8.4.27, 8.3.36, and 8.2.35 are now available, and immediate patching is strongly recommended for all users. The vulnerabilities' broad impact and the challenges in balancing security fixes with performance considerations made the response particularly complex.

CISA Urges Immediate Patching of Critical PHP Remote Code Execution Vulnerabilities

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has issued an urgent advisory regarding two severe vulnerabilities in the PHP programming language that allow unauthenticated remote code execution. Identified as CVE-2026-109618 and CVE-2026-109619, the flaws affect all environments processing web requests with PHP and have been nicknamed php2shell. CISA recommends applying patches to PHP 8.5.12, 8.4.27, 8.3.36, or 8.2.35 without delay, or taking affected systems offline if updates cannot be applied immediately. Although no exploitation has been observed yet, organizations are instructed to inventory PHP usage, prioritize internet-facing systems, and monitor for suspicious activity such as shell processes spawned from PHP workers. Web application firewalls may offer partial protection but are not considered a substitute for patching.

GitLab Issues Critical Patches for CVE-2026-110264 Affecting Wide Range of Versions

GitLab has released emergency security updates to address multiple vulnerabilities, including one rated critical that allows unauthenticated remote code execution. The flaw, tracked as CVE-2026-110264, stems from an integer overflow in the regular expression compiler and carries a maximum CVSSv3.1 base score of 10.0. It impacts GitLab Community Edition and Enterprise Edition starting from version 7.0, with patches now available for both current and older branches. The company strongly urges immediate updates due to the severity and potential for arbitrary code execution on affected servers. Additional lower-severity issues were also resolved in the same release cycle.

Two Critical RCE Vulnerabilities Patched in PHP with CVSS 9.2 Scores

The PHP development team has disclosed two severe remote code execution vulnerabilities affecting the widely used scripting language. Both issues, tracked as CVE-2026-109618 and CVE-2026-109619, received a CVSSv4.0 base score of 9.2 and were rated Critical. The flaws stem from improper memory handling during request processing and cleanup phases. Exploitation could allow attackers to execute arbitrary code by manipulating uninitialized or residual data in worker processes. Security updates addressing both vulnerabilities were released on October 21, 2026, and users are strongly urged to apply the patches immediately. The advisories were previewed the previous day, highlighting the urgency of the fixes.

Oracle Releases October 2026 Critical Patch Update Fixing 1,295 Vulnerabilities Across Multiple Products

Oracle has published its quarterly Critical Patch Update (CPU) on October 20, 2026, delivering a total of 1,295 security patches for a wide range of products. After removing duplicates, the update addresses 1,209 unique CVEs. The highest number of fixes went to Oracle Fusion Middleware with 206 patches, followed by Oracle E-Business Suite with 194, Oracle Communications with 110, Oracle MySQL with 98, and Oracle Java SE with 55. Among the vulnerabilities, 587 received a CVSSv3 base score of 7.0 or higher, including 112 rated 9.0 or above. Six vulnerabilities scored the maximum 10.0, one of which is CVE-2026-101809 in Oracle E-Business Suite Workflow Notification Mailer that can be exploited remotely without authentication over HTTP.

Google Releases Chrome 156 Fixing 353 Vulnerabilities Including Six Critical Issues

Google has released Chrome 156 for Windows, macOS, and Linux, addressing a total of 353 vulnerabilities tracked via CVE identifiers. Six of these flaws received the highest Critical severity rating, primarily involving memory corruption in components such as Skia, Accessibility, CSS, Paint, and WebRTC. One additional Critical issue is a Use-After-Free vulnerability in Accessibility reported by Anthropic researcher Xinyang Ge with assistance from Claude. Sixty-one High severity vulnerabilities were also fixed across V8, ANGLE, WebRTC and other modules, covering memory corruption, use-after-free conditions, and input validation problems. The update further resolves 197 Medium and 89 Low severity issues. Patches are being deployed gradually over the coming days and weeks to all supported platforms.

Multiple Critical Vulnerabilities Found in PHP, Fixes Scheduled for October 21

The PHP security team has confirmed two serious vulnerabilities in the PHP scripting language. Both issues received a CVSSv4.0 base score of 9.2, placing them in the Critical severity category. The team announced the upcoming security update on October 20, 2026, and plans to release the patched versions at 14:00 UTC on October 21, which corresponds to 23:00 Japan time. Specific technical details, affected components, and vulnerable versions remain undisclosed until the patches are published. The team urges administrators to prepare for immediate updates once the fixes become available. Earlier release is possible if vulnerability details leak or active exploitation is detected.

Mozilla Releases Firefox 158.0.1 Security Update Fixing High-Severity Vulnerabilities and Compromised Certificates

Mozilla Foundation has published Firefox 158.0.1 on October 20, 2026, delivering fixes for four CVEs rated at high overall severity. Two vulnerabilities received a High rating, including a boundary condition flaw in the SVG component tracked as CVE-2026-113399 and a certificate blocklist issue identified as CVE-2026-113470. The update also refreshes the OneCRL list to block an intermediate certificate from eMudhra that was compromised earlier in the month. Mozilla delivered the updated blocklist via RemoteSettings on October 17 and embedded the changes directly into the browser release. This approach ensures compromised certificates remain blocked even when RemoteSettings is disabled or network access is unavailable. One Moderate and one Low severity issue complete the set of addressed flaws.

NEC Subcontractor Suffers Cyber Attack Leading to Customer System Disruptions and Personal Data Leak

NEC disclosed that a subcontractor handling system development and maintenance was compromised in a cyber attack during late September 2026. Attackers stole legitimate account credentials and used them to access multiple customer environments from the subcontractor's systems. The intrusion resulted in server files being encrypted, rendering customer systems inoperable. Additional files containing personal information and system details were exfiltrated from a shared cloud storage platform used for coordination between NEC, the subcontractor, and customers. Affected customers have been notified individually, with further details on compromised personal data to be provided as they become available. The incident highlights risks associated with third-party vendor access in IT supply chains.

Roundcube Webmail Issues Security Updates to Address Multiple Vulnerabilities

The Roundcube Webmail development team released versions 1.7.5 and 1.6.20 on October 19, 2026, to resolve approximately 20 security issues affecting email viewing, authentication, and external content handling. The updates address command injection flaws in IMAP actions that could be triggered via newline characters, as well as header injection vulnerabilities involving sender display names and parameters such as References, In-Reply-To, Message-ID, and From. Additional fixes cover subject lines and data URIs in forwarded attachments, media types in inline images, and bypasses in server-side request forgery filters. The patches also mitigate cross-site request forgery evasion in spam reporting and cross-site scripting issues stemming from password driver error responses. Administrators are urged to apply the updates promptly to prevent exploitation of these weaknesses.

NICT and MITRE to Host AI Breach Challenge 2026 on Email Agent Security

The National Institute of Information and Communications Technology (NICT) and MITRE are organizing the AI Breach Challenge 2026: Email Agent Security competition in December 2026. The event will take place at George Mason University in Virginia and will focus on identifying security weaknesses in AI agents designed for workplace email operations. Participants will work in teams of two to four people, combining on-site and remote access over a 24-hour period on December 16 and 17. They will attempt to induce unintended behaviors in the agents and gain access to protected information within an isolated environment. NICT plans to analyze the results to evaluate the effectiveness and limitations of current AI agent security measures for future research and development.

Multiple Vulnerabilities Found in nginx Web Server, Three Rated Critical by F5

F5 disclosed an out-of-band security advisory on October 14, 2026, revealing a total of 11 vulnerabilities across nginx and related products. Five issues affect the core open-source nginx server while six more impact associated offerings including NGINX Gateway Fabric and NGINX Ingress Controller. The flaws can lead to denial of service, remote code execution, authentication bypass, and sensitive information disclosure. Although the official nginx project rates all five core vulnerabilities as Medium severity, F5 assigns a CVSS v4.0 base score of 9.2 to three of them, classifying them as Critical. One example is CVE-2026-15176, a heap buffer overflow in the ngx_http_core_module that triggers under specific URL rewrite and file-path configuration settings.

CISA Adds BeyondTrust Remote Support and Fortinet Flaws to KEV Catalog Following Zero-Day Exploitation by ARMORY CASTLE

The US Cybersecurity and Infrastructure Security Agency has added two vulnerabilities affecting Fortinet and BeyondTrust products to its Known Exploited Vulnerabilities catalog. CVE-2026-102764 is an authentication bypass flaw in BeyondTrust Remote Support that allows remote attackers to manipulate appliance files without credentials due to insufficient source validation. BeyondTrust released an advisory on October 15, 2026, rating the issue 9.3 on CVSS v4.0 as Critical. Mandiant attributes the zero-day exploitation to the suspected Chinese group ARMORY CASTLE, which deployed web shells for persistence and privilege escalation in late August. The second CVE, CVE-2025-61624, also appears on the KEV list but lacks further public technical details in the current advisory. Organizations are urged to apply patches immediately to prevent further compromise.

JPAAWG 9th General Meeting to Examine AI-Driven Messaging Threats and Global Standards in Tokyo

The Japan Anti-Abuse Working Group will hold its ninth annual General Meeting on November 5-6, 2026, in Tokyo as a hybrid event focused on evolving messaging security challenges. Keynote speaker Tom Bartel from M3AAWG will address worldwide anti-abuse trends and the practical realities of AI-powered attacks and defenses. Sessions will cover the recently standardized DMARCbis specification under RFC 9989, ongoing work on DKIM2 to counter replay attacks, BIMI logo display adoption, and sender guidelines for AI-generated email summaries. Practical workshops will teach DMARC report analysis using real sample data along with related technologies such as ARC, DNSSEC, and MTA-STS. Government agencies including the National Police Agency and Ministry of Internal Affairs and Communications will also present, alongside a dedicated track on post-quantum cryptography.

Japan's IPA Opens Special Consultation Desk for Suspected Cyberattack Data Leaks

The Information-technology Promotion Agency (IPA) has launched a dedicated Unauthorized Access Special Consultation Desk to assist companies and organizations affected by cyber attacks resulting in information leaks. The service accepts inquiries from entities that only suspect they may have been victimized, providing initial response guidance even before confirmed incidents. Consultations cover advice on whether unauthorized access or data exfiltration is likely, recommended immediate containment steps, lists of incident response vendors, and reporting obligations to relevant authorities. The hotline operates on weekdays from 9:30 to 17:30 excluding the lunch hour, while email replies may take until the next business day. Separate channels exist for non-access incidents, general security advice, and individual personal data breach concerns. The move responds to a rising number of breaches targeting online services handling personal information.

CISA Adds Five Exploited Vulnerabilities to KEV Catalog Including AhsayCBS Authentication and Command Injection Flaws

The US Cybersecurity and Infrastructure Security Agency (CISA) has added five vulnerabilities to its Known Exploited Vulnerabilities catalog after confirming active exploitation in the wild. Four vulnerabilities were registered on October 14, 2026, and one additional entry followed on October 15. Among the newly listed issues are two critical flaws affecting the AhsayCBS backup management server: CVE-2026-105133, an authentication bypass in the API, and CVE-2026-105134, a command injection vulnerability in the replication feature. When chained together, the pair allows unauthenticated remote attackers to execute arbitrary operating system commands. Vendor Ahsay has released hotfixes in versions 10.3.4.45 and 9.15.2.70 because standard patches cannot fully address the issues. The advisory also references vulnerabilities in Atlassian products and multiple network security solutions from other vendors.

Google Issues Chrome Security Update Fixing Critical Vulnerability Two Days After Previous Patch

Google has released a new set of security updates for its Chrome browser that address ten vulnerabilities, including one rated critical. The update arrives just two days after a larger patch that fixed 37 issues on October 13. The most severe flaw, tracked as CVE-2026-110922, is a use-after-free vulnerability in the Prerender feature that could allow remote code execution. The company released Chrome 155.0.8059.85 and 155.0.8059.84 for Windows and macOS, along with Chrome 155.0.8059.84 for Linux on October 15. The critical issue was reported by an external researcher on October 2. Deployment will occur gradually over the next several days to weeks.

Palo Alto Networks Discloses Seven PAN-OS Vulnerabilities Including One Already Exploited in the Wild

Palo Alto Networks has published seven security advisories addressing vulnerabilities in its PAN-OS operating system used on PA-series and VM-series firewalls as well as the Panorama management platform. One flaw tracked as CVE-2026-0322 allows authenticated remote code execution with root privileges through the management interface and has already been observed in limited exploitation attempts. The company rated the issue with a CVSS v4.0 base score of 8.6 and assigned it the highest remediation priority. Four additional medium-severity issues and two low-severity issues were also fixed in the same set of advisories. Products such as Cloud NGFW and Prisma Access are confirmed to be unaffected. Palo Alto Networks urges immediate patching for all impacted PAN-OS deployments.

Critical Vulnerability CVE-2026-76519 in Cisco Secure Email Gateway Allows Arbitrary File Writes Without Authentication

Cisco Systems has disclosed a critical vulnerability in its Cisco Secure Email Gateway product that affects the Advanced Malware Protection feature responsible for processing email attachments. The flaw, tracked as CVE-2026-76519, permits unauthenticated attackers to write arbitrary files to the underlying operating system by sending a specially crafted email attachment. Successful exploitation can lead to remote command execution with root privileges. The vulnerability received a CVSS v3.1 base score of 9.8 and is rated Critical. Cisco confirmed active exploitation of the issue in October 2026, shortly after publishing the security advisory on October 14, 2026. This marks the second publicly disclosed exploited vulnerability in the product within a short period, though the flaws are unrelated.

Microsoft Patches Over 1,400 Vulnerabilities in October 2026 Security Update, Some Already Exploited

Microsoft released its October 2026 Patch Tuesday updates on October 13, 2026, addressing a total of 1,407 CVEs plus one additional advisory. The update covers a wide range of issues including 315 remote code execution flaws, 673 privilege escalation vulnerabilities, and 252 information disclosure problems. Severity ratings show 78 vulnerabilities classified as Critical and 1,329 as Important. Several of the addressed flaws have already been confirmed as exploited in the wild. The release aligns with the regular second Tuesday of the month schedule for coordinated vendor patching. Related security advisories from other vendors were also highlighted in the same reporting cycle.

Google Chrome Update Patches 37 Vulnerabilities Including Seven Critical Flaws

Google has released a security update for its Chrome browser that addresses 37 vulnerabilities across Windows, macOS, and Linux platforms. Seven of the issues are rated Critical, the highest severity level, while 29 are rated High and one is rated Medium. The update brings Chrome to versions 155.0.8059.80 on Windows and macOS and 155.0.8059.79 on Linux and macOS. Among the critical fixes is a buffer overflow in the ANGLE graphics component tracked as CVE-2026-110152, plus six Use After Free flaws affecting Browser, PDF, Network, Core, SVG, and Media components. The High-severity issues primarily involve Use After Free problems in V8, WebRTC, PDF, DOM, and Media. The single Medium issue is also included in the advisory.

Ivanti Connect Secure VPN Hit by Zero-Day Authentication Bypass Vulnerability CVE-2026-104935

Ivanti has disclosed a critical authentication bypass vulnerability in its Ivanti Connect Secure remote access product that allows remote attackers to execute arbitrary commands without authentication. The flaw, tracked as CVE-2026-104935, carries a CVSSv3.0 base score of 8.6 and has already been exploited in the wild against certain customer environments. Affected versions include 25.1.2.2, 25.1.1.1, and 22.8R2.4 along with earlier releases in those branches, while versions 22.7R2.14 and prior remain unaffected. Ivanti discovered the issue through its product security program and released the fix in version 25.1.3.0 during July. The company published its security advisory on October 13, 2026, confirming active exploitation of the zero-day in unpatched branches.

NICT Warns of A2B Attacks Where Reverse-Engineered Android Apps Expose Vulnerable Backend Servers

Japan's National Institute of Information and Communications Technology (NICT) has issued an alert on A2B attacks, in which publicly available Android apps are reverse-engineered to identify and target their backend servers. The technique, called App-to-Backend Attack, allows threat actors to discover internal server endpoints even when organizations do not publish connection details. Once identified, attackers exploit vulnerabilities, weak authentication, or misconfigured APIs on those servers, leading to unauthorized access and data theft. NICT notes that multiple recent membership-service breaches in Japan stem from this vector rather than flaws in the mobile apps themselves. The institute urges developers and operators to harden backend infrastructure, conduct thorough compromise assessments, and apply proper access controls. Related incidents include unauthorized access to Lawson ID services, Yakiniku King app member data, and Japan Post's postal app.

Splunk Enterprise Discloses 46 Vulnerabilities Including Critical Patroni Authentication Flaw

Splunk has published three security advisories detailing a total of 46 vulnerabilities affecting Splunk Enterprise and related components. Three of the issues were rated critical, with CVE-2026-76268 receiving a CVSS v3.1 base score of 9.8. The flaw resides in the Patroni REST API used for PostgreSQL cluster management within search head clusters, allowing unauthenticated remote attackers to execute arbitrary operating system commands. Another high-severity issue, CVE-2026-76266, enables local privilege escalation to root on Linux systems during package updates. The remaining vulnerabilities cover product code, internally identified problems, and third-party packages. Organizations are urged to apply the available patches promptly.

CISA Adds Five Actively Exploited Vulnerabilities in Apache Struts, BIND, ProFTPD, Strapi and ONLYOFFICE Docs to KEV Catalog

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added five vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog on October 8, 2026, confirming active exploitation in the wild. The affected products include Apache Struts, BIND, ProFTPD, Strapi, and ONLYOFFICE Docs, with CVEs issued between 2015 and 2023. Federal agencies have until October 11, 2026, to apply mitigations or remove affected systems. One highlighted issue, Strapi CVE-2023-22894, stems from plaintext storage of sensitive information, allowing authenticated attackers to extract user data via query filters. When combined with CVE-2023-22621, the flaws enable remote code execution. CISA also warned that some impacted products may no longer receive vendor support.

Cisco Patches 14 Vulnerabilities in NX-OS Software, Four Rated Critical

Cisco Systems has released security updates addressing 14 vulnerabilities in its Cisco NX-OS Software used in network devices. Four of the seven security advisories published on October 7, 2026, are rated Critical, while three are rated Medium. Several critical issues affect the Cisco Nexus 3000 Series and Nexus 9000 Series switches, impacting features such as NGOAM, MPLS OAM, and the NX-API management interface. Seven vulnerabilities received CVSSv3.1 base scores of 9.0 or higher, with multiple flaws enabling remote code execution as root or denial-of-service conditions. Specific CVEs including CVE-2026-76485, CVE-2026-76486, and CVE-2026-76501 stem from input validation failures in the NGOAM feature and may require SRv6 or NV Overlay configurations to be exploitable. The advisories also cover control plane denial-of-service issues, Python sandbox escapes, and endpoint group contract bypasses in ACI mode.

HPE Networking ClearPass Policy Manager Hit by 28 Vulnerabilities Including 10 Rated Critical

Hewlett Packard Enterprise has disclosed 28 vulnerabilities in its HPE Networking ClearPass Policy Manager product and released security updates to address them. The issues span the web management interface, APIs, endpoint agents, and client software components. Ten of the flaws received a Critical severity rating. Notable issues include SQL injection, multiple authentication bypasses, unsafe deserialization leading to remote code execution, and path traversal. No public exploit code or active discussions were observed at the time the advisory was published on October 6, 2026. The company urges customers to apply the available patches promptly.

Critical SSRF Vulnerability Affects SonicWall SMA1000 Series Remote Access Appliances

SonicWall has disclosed four vulnerabilities in its SMA1000 series remote access products, with one rated critical. The most severe issue, CVE-2026-102255, is a server-side request forgery flaw in the WorkPlace interface that allows unauthenticated attackers to abuse the appliance as a forward proxy and reach internal functions. The vulnerability received the maximum CVSSv3.0 base score of 10.0. Two additional flaws, CVE-2026-102256 and CVE-2026-102257, enable authenticated OS command injection and unauthenticated path traversal via crafted archives, respectively. No exploitation has been observed in the wild at the time of disclosure. SonicWall has released updates to address all issues.

WordPress 7.1.3 Security Release Fixes Seven Vulnerabilities Including Stored XSS and SQL Injection

The WordPress development team has released version 7.1.3 as a maintenance and security update addressing multiple vulnerabilities. The release includes seven security fixes and four additional bug corrections. Among the security issues resolved is a stored cross-site scripting flaw that allowed pending comments to execute scripts in the administrative interface. Other fixes cover a denial-of-service condition in URL handling, an SQL injection vulnerability in the WXR export feature, and unauthorized disclosure of comments attached to private or unpublished posts. Additional patches address an XSS issue in the Imgur embed functionality, improper sticky post permissions for users with the Author role, and a parameter manipulation problem affecting hook action names.

Google Releases Chrome 155 Fixing 247 Vulnerabilities Including Four Critical Use-After-Free Flaws

Google has released Chrome 155 on October 6, 2026, addressing a total of 247 security issues across Windows, macOS, and Linux platforms. The update includes four critical vulnerabilities, all classified as use-after-free flaws that affect Chromecast, Browser, Navigation, and Track components. Fifty-three high-severity issues were also resolved, covering problems in SiteIsolation, Core, Omnibox, FileSystem, ANGLE, WebGL, and multiple other modules. The critical CVEs fixed are CVE-2026-106382, CVE-2026-106197, CVE-2026-106358, and CVE-2026-106347. Additional fixes address use-after-free conditions, race conditions, type confusion, and integer overflows in V8, WebRTC, PDF, Media, Parser, Storage, and WebAudio. The new versions are Chrome 155.0.8059.40 for Windows and macOS and 155.0.8059.39 for Linux and macOS.

Critical CVE-2026-21589 Affects Eight Atlassian Products with CVSS 9.3 Score

Atlassian has disclosed a critical vulnerability tracked as CVE-2026-21589 that impacts eight of its products. The flaw allows unauthenticated access to specific files located in the web application's root directory when an attacker already knows the file name and path. Products affected include Bitbucket Data Center, Confluence Data Center, Jira Service Management Data Center, Jira Software Data Center, Bamboo Data Center, Crowd Data Center, Crucible, and Fisheye. Atlassian rates the issue Critical with a CVSSv4.0 base score of 9.3 and warns that Data Center editions face elevated risk due to potential exposure of sensitive files. The company released patches for all affected products and urges immediate updates, while also providing mitigation steps and indicators of compromise for organizations unable to patch right away.

Fortinet Releases FortiMail Updates to Patch Zero-Day CVE-2026-104286

Fortinet has begun distributing updates for its FortiMail email security product to address the zero-day vulnerability CVE-2026-104286. The flaw allows unauthenticated attackers to write arbitrary files to the system by sending specially crafted HTTP requests. The company first published a security advisory on October 1, 2026, confirming active exploitation and providing Indicators of Compromise while preparing fixes. On October 5, 2026, Fortinet updated the advisory and released patched versions including FortiMail 8.0.2, 7.6.7, and 7.4.9. Organizations still running the 7.2 branch are advised to migrate to the 7.4 branch or later to obtain protection. The advisory reference is FG-IR-26-175.

Critical Sandbox Bypass Flaw in GitLab AI Gateway Enables Remote Command Execution

GitLab has released patches for a critical vulnerability in its GitLab AI Gateway component that allows authenticated users to bypass sandbox restrictions and execute arbitrary commands. The flaw, tracked as CVE-2026-90970, resides in the custom flow prompt template processing of the Duo Agent Platform and carries a CVSS v3.1 base score of 9.9. Self-hosted deployments are affected, while GitLab’s own hosted AI Gateway service has already been updated. The company urges immediate upgrades to versions 19.4.1, 19.3.2, or 19.2.4. The vulnerability can be triggered under specific conditions by users with access to the Duo Agent Platform through crafted flow configurations.

WebPros Releases Critical Patches for Three Vulnerabilities in cPanel & WHM

WebPros International has published security updates addressing three critical vulnerabilities in its cPanel & WHM hosting management platform. All three issues received the highest severity rating of Critical. The flaws include CVE-2026-93698, an input validation weakness in the Multilang adminbin component that could allow root-level operating system command execution. Two additional stored cross-site scripting vulnerabilities were also fixed, one of which is CVE-2026-93697 affecting the Mass Modify Accounts interface in WHM. Successful exploitation of the XSS flaws could let low-privileged accounts hijack administrator sessions. The updates were made available on September 29, 2026, and carry CVSS v3.0 base scores reaching 9.9.

Top Cybersecurity Stories: SharePoint Exploits Warned by US Authorities, Citrix and WordPress Flaws Lead Weekly Rankings

Security NEXT has published its weekly ranking of the most viewed articles from September 27 to October 3, 2026, highlighting critical vulnerability disclosures and confirmed exploitation cases. US authorities issued warnings about active exploitation of five vulnerabilities affecting SharePoint and WordPress. Citrix NetScaler received multiple vulnerability advisories with two flaws already confirmed as exploited in the wild. Apple released iOS 26.7.1 to address vulnerabilities potentially used in targeted attacks against specific individuals. Other notable incidents include a personal data breach at Times Car car-sharing service and a ransomware attack impacting Keio Electric Railway operations.

Google Releases Chrome Update Fixing 11 Vulnerabilities Including Critical WebGL Flaw

Google has issued an update for its Chrome browser that addresses 11 security vulnerabilities across Windows, macOS, and Linux platforms. The release includes Chrome 154.0.8037.98 and 154.0.8037.97 for Windows and macOS, along with version 154.0.8037.97 for Linux. One vulnerability, CVE-2026-103628, received a Critical rating due to an out-of-bounds memory write in WebGL that was originally reported in August. Nine additional issues rated High severity affect components such as FileSystem, Compositing, Skia, FedCM, SVG, MediaStream, and WebRTC, including a buffer overflow tracked as CVE-2026-103631. The update also resolves a type confusion flaw in the V8 scripting engine and one Medium-severity issue. Google plans a gradual rollout over the coming days and weeks.

Times Car Breach Exposes Identity Documents of 1.6 Million Users

Times Mobility, operator of the Times Car car-sharing service under the Park24 group, confirmed a data breach affecting approximately 6.6 million accounts. The intrusion was detected on September 25, 2026, after unauthorized access to the company's systems. Leaked information includes names, addresses, phone numbers, dates of birth, email addresses, driver's license details, and hashed passwords. Most notably, images of identity verification documents were exposed for around 1.6 million accounts, covering driver's licenses, address proofs, student IDs, and family confirmation documents. The company is notifying affected members individually by email and plans further updates based on ongoing investigation results.

Apache HTTP Server 2.4.69 Patches 20 Vulnerabilities Including CVSS 9.8 Issues

The Apache HTTP Server development team released version 2.4.69 on October 1, 2026, addressing a total of 20 vulnerabilities. While the Apache Security Team assessed most issues as moderate or low in impact, several vulnerabilities received CVSS base scores as high as 9.8. The update includes fixes for stack-based buffer overflows, use-after-free conditions, and out-of-bounds writes affecting multiple modules. No vulnerabilities were rated Critical or Important by the developers, with five classified as Moderate and fifteen as Low. Specific fixes cover the mod_vhost_alias, mod_http2, mod_dav, and mod_dav_fs modules, along with Windows-specific path handling problems.

WatchGuard Fireware OS Affected by 15 Vulnerabilities Including Critical CVE-2026-86131

WatchGuard Technologies disclosed 15 vulnerabilities in Fireware OS, the operating system powering its UTM appliances. The advisories were published between September 29 and 30, 2026, covering issues that range from remote code execution and authorization bypass to file disclosure and denial of service. Impact varies by deployment, yet none of the flaws had been observed in active exploitation at disclosure time. The most severe finding, CVE-2026-86131 in BOVPN Over TLS, received a CVSS v4.0 base score of 9.2 and Critical rating. This code-injection flaw in client configuration handling allows an attacker who controls the VPN server to execute arbitrary commands with root privileges on the connecting Firebox device. The remaining vulnerabilities affect multiple components and are tracked under separate CVE identifiers listed in the official advisories.

Critical Zero-Day Vulnerability in FortiMail Allows Unauthenticated File Writes

Fortinet disclosed a critical zero-day vulnerability in its FortiMail email security product that is already being exploited in attacks. The flaw, tracked as CVE-2026-104286, affects the graphical user interface component and stems from improper sanitization of path traversal and NULL byte sequences. Attackers can craft malicious HTTP requests to write arbitrary files to the system without authentication. The vulnerability received a CVSS v3.1 base score of 9.8, classifying it as Critical. Fortinet discovered the issue internally but has also received reports of active exploitation. Planned patches include FortiMail 8.0.2, 7.6.7, and 7.4.9, while users on the 7.2 branch are advised to migrate to 7.4 or later.

Apache WSS4J Library Addresses Seven Vulnerabilities Including Authentication Bypass Flaws

The Apache WSS4J library, used to apply WS-Security to SOAP messages in Java environments, has received updates fixing seven vulnerabilities. The development team disclosed multiple security advisories on September 30, 2026, covering the issues. Three vulnerabilities received an Important severity rating: CVE-2026-88920, CVE-2026-89238, and CVE-2026-95616. CVE-2026-88920 allows authentication bypass in the DOM security processor by injecting attacker-controlled keys into crafted unsigned sender-vouches SAML assertions. CVE-2026-89238 stems from improper handling of encryption headers, enabling attackers to force plaintext elements to be treated as decrypted headers and bypass security policies. The remaining four vulnerabilities were also resolved in the same coordinated update release.

US Authorities Warn of Active Exploitation of Apple CoreGraphics and Cisco SD-WAN Vulnerabilities

The US Cybersecurity and Infrastructure Security Agency (CISA) has added two newly identified vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog. CVE-2026-86950 affects Apple iOS, iPadOS, and macOS through a flaw in the CoreGraphics framework that allows out-of-bounds memory writes and potential arbitrary code execution. CVE-2026-76504 impacts Cisco Catalyst SD-WAN Manager, enabling unauthenticated attackers to gain administrative access due to improper URI encoding handling in the API. Federal agencies must remediate both issues within three days of their respective catalog additions. CISA also requires organizations to check for signs of compromise in addition to applying patches. The alerts highlight ongoing risks to widely deployed Apple operating systems and enterprise SD-WAN infrastructure.

Cisco Patches Critical Zero-Day Authentication Bypass in Catalyst SD-WAN Manager

Cisco Systems has released security updates to address a critical zero-day vulnerability in Cisco Catalyst SD-WAN Manager that allows attackers to bypass authentication and gain remote administrator access. The flaw, tracked as CVE-2026-76504, stems from improper URI encoding handling in HTTP requests targeting specific APIs. With a CVSS v3.1 base score of 9.8, the issue is rated Critical and has already been exploited in real-world attacks confirmed by Cisco in September 2026. The company published its security advisory on September 30, 2026, and strongly recommends immediate updates to the fixed releases. Organizations are also advised to restrict API access to trusted sources while applying the patches.

Critical Vulnerability CVE-2026-12342 Allows Remote Code Execution in SailPoint IdentityIQ

SailPoint has disclosed a critical vulnerability in its identity management product IdentityIQ that stems from insufficient input validation in the web service API. The flaw, identified as CVE-2026-12342, permits an attacker on an adjacent network to execute arbitrary code on the IdentityIQ server without requiring authentication. The vulnerability received a CVSSv3.1 base score of 9.6 and is rated Critical. SailPoint published a security advisory on September 28, 2026, and has released patches for all supported affected versions. The company also plans to include the fix in future patch levels. The issue affects the processing of content sent to the web service API, where improper validation allows malicious input to trigger code execution.

Mozilla Releases Firefox 157 with 76 Security Fixes, Shifts to Individual CVE Reporting

Mozilla Foundation has released Firefox 157, addressing 76 vulnerabilities rated at various severity levels. The update also includes patches for the extended support releases Firefox ESR 153.4, ESR 140.17, and ESR 115.42. A key change in this release involves Mozilla's new approach to publishing security advisories, moving from grouping multiple memory safety issues under single CVEs to reporting them individually. Among the high-severity issues fixed are sandbox escape flaws, privilege escalation bugs, use-after-free errors, uninitialized memory problems, and JIT compiler mistakes affecting components such as DOM, Graphics, WebGPU, WebAssembly, and Networking. The ESR versions received 62, 43, and 31 fixes respectively, with 34 rated high in the latest branch. All listed CVEs range from CVE-2026-100756 through CVE-2026-100831.

Google Releases Chrome Security Update Fixing 32 Vulnerabilities Including One Critical Flaw

Google has issued a security update for its Chrome browser that addresses a total of 32 vulnerabilities across Windows, macOS, and Linux platforms. One vulnerability is rated Critical, while 25 are rated High, one Medium, and five Low. The Critical issue, tracked as CVE-2026-102331, is a buffer overflow in the ANGLE graphics component that was reported externally on August 24. High-severity fixes cover multiple type confusion and buffer overflow problems in the V8 JavaScript engine, use-after-free flaws in Bluetooth, Views, Passwords, FullScreen, and PictureInPicture, plus uninitialized resource handling in GPU and WebGPU. Additional High issues include out-of-bounds writes in GPU, out-of-bounds reads in WebGL, cross-site scripting in WebUI, UI display problems in Omnibox, and permission management weaknesses in Mojo. The update ships as Chrome 154.0.8037.93 and 154.0.8037.92 for Windows and macOS and 154.0.8037.92 for Linux, with gradual rollout over the coming days and weeks.

Multiple Vulnerabilities Found in WatchGuard Access Points Including Critical Flaw

WatchGuard Technologies has disclosed three vulnerabilities affecting its WatchGuard AP access point products, one of which is rated critical. The issues were detailed in an advisory published on September 28 and involve flaws in internal API services and a diagnostic command-line interface. CVE-2026-86102 allows OS command injection that can lead to arbitrary shell command execution on the underlying operating system when an attacker has network access. CVE-2026-101891 stems from improper access controls that permit unauthenticated acquisition of valid API sessions. CVE-2026-87969 affects the diagnostic CLI and enables arbitrary OS command execution but requires administrator privileges to exploit. The findings were reported by Security NEXT.

Apple Releases macOS Updates to Fix CoreGraphics Vulnerability Possibly Exploited in Targeted iOS Attacks

Apple has issued security updates for multiple macOS versions to address a serious vulnerability in the CoreGraphics framework. The flaw, tracked as CVE-2026-86950, involves an out-of-bounds write that could allow arbitrary code execution when processing specially crafted files. The company also noted that the same issue may have been exploited in sophisticated, targeted attacks against older versions of iOS. CISA assigned the vulnerability a CVSS v3.1 base score of 8.8, classifying it as High severity. Patches are now available in macOS Tahoe 26.7.1, macOS Sequoia 15.8.1, and the latest macOS Golden Gate 27.0.1 release.

Apple Releases iOS 26.7.1 and iPadOS 26.7.1 to Fix CoreGraphics Vulnerability Possibly Exploited in Targeted Attacks

Apple has issued iOS 26.7.1 and iPadOS 26.7.1 to address a high-severity vulnerability in the CoreGraphics framework. The flaw, tracked as CVE-2026-86950, could allow arbitrary code execution when processing a specially crafted file due to an out-of-bounds write. The company stated that the issue may have been exploited in sophisticated, targeted attacks against specific individuals on versions prior to iOS 27. CISA assigned the vulnerability a CVSS v3.1 base score of 8.8, classifying it as High severity. On the same day, Apple also released iOS 27.0.1 and iPadOS 27.0.1, though those updates did not reference CVE-2026-86950. The patches close a vector that could be abused for remote code execution in image rendering components.

Multiple Critical Vulnerabilities Found in Citrix NetScaler ADC and Gateway, Two Actively Exploited

Cloud Software Group disclosed eight vulnerabilities affecting NetScaler ADC and NetScaler Gateway products on September 27, 2026. Two of the issues, CVE-2026-88771 and CVE-2026-88772, have already been confirmed as exploited in the wild, prompting urgent remediation advice. CVE-2026-88771 stems from insufficient input validation and allows unauthenticated remote code execution across all default configurations. CVE-2026-88772 involves a memory overflow that can lead to code execution or denial of service when DTLS is enabled, which occurs by default on VPN vServers. The remaining six vulnerabilities cover code execution, denial of service, and HTTP request smuggling risks, with the advisory rated Critical overall. Organizations are urged to apply patches immediately and investigate potential breaches.

Findy to Host AI×Security Conference 2026 on Rapid AI Evolution and Core Defense Principles

The Japanese security portal Security NEXT reports that Findy will organize the offline AI×Security Conference 2026 on October 28, 2026, in Tokyo. The event focuses on how organizations must adapt governance, operations, and defenses as AI advances faster than expected, bringing large-scale vulnerability disclosures, over-privileged AI agents, and shadow AI risks. Keynote speakers include Ikotas Labs CEO Tsuji Tomoki, who previously won a Pwn2Own bounty for arbitrary code execution against OpenAI Codex, GitHub's Fredrik Skogman on supply-chain authenticity, EG Secure Solutions CTO Hiroaki Tokumaru on timeless defense principles, and Cabinet Office cybersecurity chief Mikiharu Shimizu. Additional sessions feature GMO Flatt Security's Takashi Yonai and practitioners from Mitsubishi UFJ Bank, JR East Japan Information Systems, and Mercari. Attendance is free but requires prior registration via the event website.

ServiceNow AI Platform Affected by Five Vulnerabilities Including Critical SQL Injection Flaws

ServiceNow disclosed five vulnerabilities in its AI Platform on September 24, 2026, through a security advisory. Two of the issues received CVSS v4.0 base scores of 9.3 and were rated Critical. CVE-2026-13016 allows unauthenticated remote attackers to perform SQL injection and manipulate database contents under specific conditions. CVE-2026-86860 stems from improper authorization checks that enable data exfiltration and privilege escalation without authentication. The flaws were identified via internal testing, coordinated disclosure, and the company's bug bounty program. ServiceNow urges customers to apply the provided updates immediately to mitigate the risks.

CISA Adds Adobe Commerce and WSO2 Vulnerabilities to Known Exploited Vulnerabilities Catalog

The US Cybersecurity and Infrastructure Security Agency has added two actively exploited vulnerabilities to its Known Exploited Vulnerabilities catalog. CVE-2026-71362 affects Adobe Commerce and Magento, enabling attackers to escalate privileges through an authorization bypass flaw. CVE-2026-5430 impacts multiple WSO2 API management products and allows JWT authentication bypass, leading to administrator account takeover and remote code execution via arbitrary file uploads. Adobe issued an advisory in August 2026 recommending patches within 30 days, while WSO2 warned about the issue in May 2026. CISA has set a September 27, 2026 deadline for federal agencies to apply updates and investigate potential compromises.

GitLab Releases Security Updates Fixing 11 Vulnerabilities Including Two Critical Flaws

GitLab has issued critical security updates for its development platform to address 11 vulnerabilities across Community Edition and Enterprise Edition. The patches cover versions 19.4.1, 19.3.3, and 19.2.7 and were released on September 23, 2026. Two vulnerabilities rated Critical allow authenticated users to achieve arbitrary code execution on the server. CVE-2026-89078 involves a double-free issue in CI/CD configuration parsing triggered by crafted regular expressions, while CVE-2026-93577 is an integer overflow in the regular expression compiler. Additional High-severity issues include cross-site scripting in merge request diffs and unauthorized access to sensitive CI/CD variables via the Duo AI job troubleshooting feature. The update also resolves five Medium and two Low severity flaws.

Google Releases Chrome 154 with 108 Security Fixes Including 11 Critical Vulnerabilities

Google has published Chrome 154 for Windows, macOS, and Linux, addressing a total of 108 vulnerabilities. Eleven of these issues are rated Critical, covering buffer overflows in ANGLE, out-of-bounds writes in GPU, and multiple Use-After-Free flaws in ServiceWorker, Fullscreen, WindowDialog, AdFilter, and WebGL. Twenty-five High-severity issues were also fixed, including authorization problems in extensions, improper UI rendering in SecurityIndicators, and race conditions plus type confusion in the V8 JavaScript engine. Additional Medium and Low severity fixes bring the total to 108 patched flaws across components such as PDFium and WebAudio. The update is being rolled out over the coming days and weeks. Specific CVEs addressed include CVE-2026-95350, CVE-2026-95357, and CVE-2026-95281.

WordPress Issues Critical Security Update 7.1.2 Five Days After Previous Patch

WordPress has released version 7.1.2 to fix a new critical vulnerability that was not addressed in the 7.1.1 update issued just five days earlier. The flaw, tracked as CVE-2026-87902, is a path traversal issue rated Critical that can be exploited without authentication. It resides in the page template resolution process and allows execution of arbitrary local PHP files located outside the theme directory, provided certain conditions such as the presence of a page- prefixed directory in the parent or child theme are met. The update was published on September 22, 2026, and affects the prior release from September 17. Administrators are urged to apply the patch immediately to prevent potential remote code execution.

F5 BIG-IP APM Vulnerability CVE-2026-94127 Allows Remote Code Execution, Already Exploited in the Wild

F5 has disclosed a critical heap-based buffer overflow vulnerability in BIG-IP Access Policy Manager that is already being actively exploited. The flaw, tracked as CVE-2026-94127, affects systems configured as an OAuth authorization server with both an access policy and OAuth profile applied to a virtual server. Successful exploitation can result in arbitrary code execution from crafted network traffic. The issue also impacts appliance mode configurations. F5 rates the vulnerability 9.3 under CVSS v4.0 and 9.8 under CVSS v3.1, classifying it as Critical. The company discovered the flaw internally and has confirmed real-world exploitation, urging immediate patching and compromise assessment.

CISA Adds Three Actively Exploited Linux Kernel Vulnerabilities to KEV Catalog

The U.S. Cybersecurity and Infrastructure Security Agency has added three vulnerabilities affecting the Linux Kernel to its Known Exploited Vulnerabilities catalog. The flaws, identified as CVE-2025-39682, CVE-2026-53266, and CVE-2025-39964, are confirmed to be under active exploitation in the wild. CISA is directing all federal agencies to apply patches immediately and to search for indicators of compromise. The vulnerabilities impact the kernel's kTLS TLS processing, the ebtables network bridge component, and the AF_ALG cryptographic interface. Each issue can lead to memory corruption or inconsistent internal state that attackers may leverage for privilege escalation or remote code execution.

Cisco Patches 29 Vulnerabilities in Secure Firewall ASA, FTD and FMC Products

Cisco Systems has disclosed multiple vulnerabilities affecting its Cisco Secure Firewall product line and released corresponding security updates. The advisory covers 14 security bulletins addressing 29 CVEs across Adaptive Security Appliance (ASA), Threat Defense (FTD), and Management Center (FMC) software. Five of the advisories are rated Critical, covering 18 CVEs that include remote code execution without authentication and privilege escalation to administrator level. Several issues have already been confirmed as exploited in the wild. The company also consolidated related weaknesses under single CVE identifiers where appropriate and provided CVSS v3.1 base scores ranging up to 9.9. Affected products include the Secure Firewall 3100 and 4200 Series along with multiple software hardening releases issued on 16 September 2026.

pgAdmin 4 Database Management Tool Patches Multiple Vulnerabilities in Version 9.18

The development team behind pgAdmin 4, the popular management tool for PostgreSQL databases, has released version 9.18 to address multiple security issues. The update, published on September 17, 2026, includes fixes for four CVEs along with 29 total changes covering new features and bug resolutions. One vulnerability, tracked as CVE-2026-86863, stems from insufficient web server authentication that trusts external HTTP headers, enabling attackers to bypass login and impersonate administrators without passwords. A second issue, CVE-2026-86864, allows command injection through the backup feature when database names are passed as arguments, potentially leading to unauthorized file writes or exfiltration of connection passwords. The update is available now from the official pgAdmin repository.

Cisco ISE Affected by 42 Vulnerabilities Including Multiple Critical Flaws with Confirmed Exploitation

Cisco Identity Services Engine (ISE) has been found to contain 42 vulnerabilities across 15 security advisories released by Cisco Systems on September 16, 2026. Six advisories received the highest Critical rating, covering 21 individual vulnerabilities, while three were rated High and six Medium. One standout issue, CVE-2026-76460, allows attackers to bypass authentication on the management API via crafted HTTP requests and execute commands with root privileges. The flaw also impacts the Cisco ISE Passive Identity Connector (ISE-PIC). Cisco has urged immediate application of updates as some vulnerabilities are already being exploited in the wild. The product provides core network authentication and access control functions for enterprise environments.

CISA Adds Three Actively Exploited Vulnerabilities to KEV Catalog, Including Cisco ISE and Acronis Backup Flaws

The US Cybersecurity and Infrastructure Security Agency has added three vulnerabilities with confirmed in-the-wild exploitation to its Known Exploited Vulnerabilities catalog. The flaws affect Cisco Identity Services Engine, its Passive Identity Connector, and Acronis Backup plugins for cPanel and Plesk. All three entries carry a remediation deadline of September 19, 2026. The Cisco issue stems from insufficient authentication controls on an API endpoint that lets remote attackers bypass the web-based management interface. The Acronis vulnerability arises from overly permissive default settings in server-management plugins, enabling privilege escalation. Federal agencies have been directed to investigate potential compromises and apply mitigations without delay.

Apple Releases iOS 27 and iPadOS 27 with Fixes for 126 Vulnerabilities

Apple has released iOS 27 and iPadOS 27, addressing a total of 126 CVEs across multiple system components. The updates target issues in the kernel, WebKit, Bluetooth, video encoding, and media handling frameworks. Twenty kernel vulnerabilities were resolved, including problems that could allow memory corruption or privilege escalation to root level. Separate patches were also issued for older devices via iOS 26.7 and iPadOS 26.7. Notable fixes include CVE-2026-43689 in the kernel and CVE-2026-65414 affecting Bluetooth. The release was made available on September 14, 2026.

Google Issues Chrome 153 Security Update Addressing 42 Vulnerabilities Including Three Critical Flaws

Google has released a major security update for its Chrome browser version 153, fixing a total of 42 vulnerabilities. The update includes three critical-severity issues that could allow attackers to execute arbitrary code or cause memory corruption. Patches are now available for Windows, macOS, and Linux platforms, with versions 153.0.8010.48 and 153.0.8010.47. Among the critical fixes are out-of-bounds read in WebGL, use-after-free in Internals, and another use-after-free in Workers. The release also resolves 28 high-severity flaws affecting the V8 JavaScript engine, ServiceWorker, Skia, DOM, PDF, and other components. Medium and low severity issues were addressed as well, bringing the total to 42 vulnerabilities resolved.

Oracle Releases September 2026 Critical Security Patch Update Fixing 673 Issues Across Multiple Products

Oracle has published its monthly Critical Security Patch Update (CSPU) on September 15, 2026, delivering a total of 673 security fixes. The update addresses 672 unique CVEs after removing duplicates and targets a wide range of products including Oracle Database Server, Oracle Fusion Middleware, Oracle E-Business Suite, PeopleSoft, Siebel, and Oracle VM VirtualBox. Of the fixes, 607 received a CVSSv3 base score of 7.0 or higher, with 104 scoring 9.0 or above. Six vulnerabilities carry the maximum score of 10.0, while 15 are rated 9.9 and 44 are rated 9.8. Additionally, 247 of the issues can be exploited remotely without authentication. The CSPU serves as a smaller, more frequent complement to Oracle’s quarterly Critical Patch Update (CPU) releases.

Critical Vulnerabilities Patched in WHMCS Billing Software for Hosting Providers

WebPros International has disclosed two serious vulnerabilities in its WHMCS billing management platform used by hosting and cloud service providers. CVE-2026-67399 allows unauthenticated remote code execution through unsafe deserialization of untrusted data under specific conditions, potentially compromising the entire server environment and associated data. CVE-2026-67398 affects the 2CheckOut payment gateway module and stems from missing authorization checks, enabling attackers to retrieve sensitive customer information including names, addresses, emails, and phone numbers without authentication. HackerOne assigned CVSS v4.0 scores of 9.3 (Critical) to the first issue and 8.2 (High) to the second. WebPros released fixed versions WHMCS 9.0.8 and 8.13.7, and recommended disabling the 2CheckOut module as a temporary mitigation for the second flaw.

Cisco Releases Critical Patches for Exploited SQL Injection Flaw in Secure Email Gateway

Cisco Systems has issued security updates for Cisco Secure Email Gateway to address a critical SQL injection vulnerability tracked as CVE-2026-76461. The flaw stems from insufficient input validation during email parsing and allows unauthenticated remote attackers to execute arbitrary SQL commands. Successful exploitation can lead to root-level access on the underlying operating system, enabling full command execution. The vulnerability carries a CVSSv3.1 base score of 9.8 and is rated Critical. Cisco confirmed active exploitation of the issue in September 2026. Recommended fixes include upgrading to versions 16.5.0-780, 16.0.4-3021, or 15.5.5-0141, with strong preference given to the newest release.

Critical SSRF Vulnerability in AWS SSM Agent Allows IAM Credential Theft via Port Forwarding Bypass

Amazon Web Services has disclosed a high-severity server-side request forgery vulnerability in the AWS Systems Manager Agent. The flaw, tracked as CVE-2026-89049, affects the port forwarding feature used by Session Manager and stems from insufficient validation that permits bypass of deny-list restrictions on link-local addresses. Successful exploitation requires port-forwarding permissions but can lead to unauthorized access to instance metadata and temporary IAM role credentials. The company rated the issue as Important with CVSSv4.0 base score 8.5 and CVSSv3.1 score 9.9. The vulnerability was addressed in version 3.3.4851.0 released on 13 July 2026, prior to the public advisory issued on 10 September 2026.

CISA Adds Four Actively Exploited Vulnerabilities in GitLab, ConnectWise ScreenConnect and JFrog Artifactory to KEV Catalog

The U.S. Cybersecurity and Infrastructure Security Agency has added four vulnerabilities to its Known Exploited Vulnerabilities catalog after confirming active exploitation in the wild. The flaws affect GitLab Community Edition and Enterprise Edition, ConnectWise ScreenConnect, and JFrog Artifactory. CVE-2026-85706 allows unauthenticated path traversal in GitLab’s commit API, enabling arbitrary file reads. CVE-2026-84869 in ScreenConnect permits unauthorized file transfer and execution over active remote sessions. Two additional issues in Artifactory, CVE-2026-42018 and CVE-2026-42016, can lead to token leakage and privilege escalation. Federal agencies have been directed to apply mitigations and investigate potential compromises by specific deadlines.

Critical Vulnerability in ConnectWise ScreenConnect Enables Unauthorized File Transfers

ConnectWise has disclosed a serious vulnerability in its remote access product ScreenConnect that allows attackers to transfer and execute files from active remote sessions without requiring authorization or host-side confirmation. The flaw, tracked as CVE-2026-84869, impacts both Support and Access session types and carries a CVSS v3.1 base score of 9.9, placing it in the Critical severity category. The company rated the issue as Important in its three-tier scale and assigned it the highest priority of High. Exploitation of the vulnerability has already been confirmed in the wild, increasing the urgency for organizations using the product. ConnectWise published the security advisory on September 8, 2026, urging users to apply available mitigations promptly. The vulnerability stems from improper handling in the file transfer process within the client component.

Unauthorized Access to Japan's Government Solution Service (GSS) Exposes 246,000 Personal Records via VPN Flaw

Japan's Digital Agency confirmed that its Government Solution Service (GSS) suffered unauthorized access after attackers exploited a vulnerability in VPN equipment used for external maintenance operations. The intrusion, believed to have begun in late May 2026, allowed threat actors to compromise maintenance accounts and access large volumes of files on internal servers. On June 25, 2026, security teams detected suspicious access to numerous files using a compromised account, prompting an investigation that concluded on July 9 with confirmation of the breach. Some files containing personal information may have been exfiltrated, affecting approximately 246,000 records of government officials, civil servants, contractors, and related individuals. The agency immediately disabled the affected accounts and severed external communications on July 9 but has not disclosed technical details of the exploited VPN vulnerability. The incident was reported by Security NEXT on September 11, 2026.

CISA Adds MikroTik RouterOS Flaws CVE-2026-67277 and CVE-2026-86060 to Known Exploited Vulnerabilities Catalog

The US Cybersecurity and Infrastructure Security Agency has added two actively exploited vulnerabilities in MikroTik RouterOS to its Known Exploited Vulnerabilities Catalog. CVE-2026-86060 stems from improper sanitization of command argument delimiters and can lead to privilege escalation after an attacker gains access to the SSH login helper and alters trusted policy masks. CVE-2026-67277 involves missing authentication checks in critical RouterOS functions, allowing connections before authentication completes and potentially leaking kernel memory or causing denial-of-service conditions. CISA directed US federal agencies to apply mitigations by September 13 and specifically investigate any signs of compromise related to CVE-2026-86060. The agency noted that the flaws carry broader exploitation risk and urged all organizations using affected MikroTik products to take immediate action.

CISA Adds Four Actively Exploited Vulnerabilities to KEV Catalog Including Cisco FMC and Fortinet FortiOS

The US Cybersecurity and Infrastructure Security Agency has added four vulnerabilities to its Known Exploited Vulnerabilities catalog, warning that they are being actively exploited in the wild. The flaws affect Cisco Secure Firewall Management Center, Security Cloud Control, Fortinet FortiOS, FortiSwitchManager, and Citrix NetScaler products. One vulnerability allows attackers to bypass authentication and gain root privileges through crafted HTTP requests. Another is a heap-based buffer overflow that enables execution of unauthorized code or commands via specially crafted packets. CISA issued the update on September 9, 2026, urging organizations to apply patches immediately. The agency continues to track these issues as part of its ongoing efforts to mitigate real-world threats.

Critical RCE Vulnerabilities Disclosed in Check Point VPN Implementations

Check Point Software Technologies has disclosed multiple critical remote code execution vulnerabilities affecting its Quantum Security Gateway and related VPN components. The issues, tracked as CVE-2026-85102 and CVE-2026-85103, both carry a CVSS v3.1 base score of 9.8 and require no authentication for exploitation under specific conditions. CVE-2026-85102 stems from insufficient certificate validation during VPN negotiation in Remote Access VPN and Site-to-Site VPN setups, allowing attackers to bypass authentication and execute arbitrary code. CVE-2026-85103 involves a heap-based buffer overflow in ASN.1 decoding of VPN certificates, similarly enabling unauthenticated remote code execution. The vendor released a security advisory on September 9, 2026, along with live patches through Check Point Live Patch and official updates for affected products including Quantum Security Management.

Google Releases Chrome 153 Fixing 230 Vulnerabilities Including Zero-Day Exploit

Google has released Chrome 153 for Windows, macOS, and Linux, addressing a total of 230 security vulnerabilities. The update includes fixes for five critical-severity issues and one confirmed zero-day vulnerability already exploited in the wild. Among the critical flaws are use-after-free bugs in WebGL tracked as CVE-2026-87464 and CVE-2026-87488, an out-of-bounds write CVE-2026-87438, a buffer overflow CVE-2026-87527, and a use-after-free in the Cast component identified as CVE-2026-87628. A medium-severity out-of-bounds write in the V8 JavaScript engine, CVE-2026-87491, was reported on August 6, 2026 and has seen active exploitation. The company is rolling out the patches gradually over the coming days and weeks across all supported platforms.

Microsoft Addresses 973 Vulnerabilities in September Security Update

Microsoft released its monthly security updates on September 8, 2026, fixing 973 vulnerabilities tracked by CVE identifiers. The release coincided with Patch Tuesday and also resolved four third-party software flaws. Affected products span Windows, Office, SQL Server, Azure, Microsoft Dynamics, SharePoint Server, and various development tools. Among the issues, 258 allow remote code execution and 438 enable privilege escalation. A total of 113 vulnerabilities received the highest severity rating of Critical, while the remaining 860 were rated Important. Several of the flaws have already been observed in active exploitation.

Adobe Issues Critical Security Updates for ColdFusion Fixing Nine CVEs Including Eval Injection Flaws

Adobe has released security updates for Adobe ColdFusion to address nine vulnerabilities, urging users to apply the patches immediately. The update coincides with Patch Tuesday on September 8, 2026, and covers issues such as Eval injection, SQL injection, cross-site scripting, and access control weaknesses. Six of the vulnerabilities are rated Critical, with the highest CVSS v3.1 base score reaching 9.9 for CVE-2026-48273. The remaining three vulnerabilities are classified as Important. Adobe ColdFusion users are advised to update without delay to mitigate risks of code injection and unauthorized access. The advisory also references related security issues in other products including Canva, BIG-IP, and Dell SCG.

N-able Releases Hotfix 4 for Critical N-central RCE Flaw CVE-2026-86218 Now Confirmed Exploited

N-able disclosed a critical vulnerability in its N-central IT operations management platform that allows unauthenticated remote code execution on affected servers. The flaw, tracked as CVE-2026-86218, received the maximum CVSSv4.0 base score of 10.0 and is rated Critical. The company published security advisory information on September 5, 2026, and quickly followed with Hotfix 4 (version 2026.3.1.14) that resolves the issue. Although exploitation was not observed at disclosure, N-able updated the advisory the next day to confirm active exploitation in the wild. The vendor urges customers to apply the hotfix immediately and to monitor for suspicious account creation and scanning activity from specific IP addresses. Earlier hotfixes addressing CVE-2026-86206 and CVE-2026-86207 were superseded by the new release.

Critical Zero-Day CVE-2026-75650 in Adobe Commerce and Magento Allows Unauthenticated Remote Code Execution, Already Exploited

Adobe has released an emergency security update for Adobe Commerce and Magento after discovering a critical zero-day vulnerability that permits remote attackers to execute arbitrary code without authentication. The flaw, tracked as CVE-2026-75650, stems from improper sanitization of special elements in the template engine and carries the maximum CVSSv3.1 base score of 10.0. Adobe rates the issue as Critical and confirms active exploitation in real-world attacks. A hotfix is now available, and the company has assigned the highest priority rating of 1, urging all customers to apply the update within 72 hours. The advisory was published on September 7, 2026, highlighting the need for immediate action due to the severity and confirmed abuse.

Critical Vulnerability in ASUS Control Center Enterprise Allows Remote Root Access Without Authentication

ASUS has disclosed a severe vulnerability in its terminal management software ASUS Control Center Enterprise (ACC) that could allow unauthenticated remote attackers to obtain root privileges. The issue, tracked as CVE-2026-75754, stems from a combination of hardcoded credentials, missing authentication on critical functions, and server-side request forgery flaws. Attackers can retrieve encryption keys via unauthenticated HTTP requests and then enable SSH on TCP port 2222 using the hardcoded credentials to log in as root. The flaw affects managed devices across an organization, potentially leading to data leakage, tampering, deletion, and full remote control. ASUS released a security advisory on September 4, 2026, and strongly recommends immediate updates. The vulnerability was reported by Security NEXT on September 7, 2026.

Top 10 Security Stories: Critical Flaws in PaperCut NG/MF, Chrome, WatchGuard and Others Dominate Week

Security NEXT has published its weekly ranking of the ten most-read articles between August 30 and September 5 2026. The list is led by a critical vulnerability in PaperCut NG/MF that is already being exploited in the wild. Google Chrome received two separate updates addressing 38 vulnerabilities, including two rated Critical and one zero-day. WatchGuard Fireware OS, SonicWall SMA 1000, Cisco IOS XR and Apache Tomcat also received urgent patches for severe flaws. Three real-world incidents made the top ten: a customer-data breach at 01 Bank, a ransomware infection at Hands HD and a suspected cloud leak at Corona. The ranking reflects strong reader interest in both newly disclosed vulnerabilities and confirmed exploitation cases.

CVE-2026-85046 Exploited in Chromium V8 Engine, Affecting Chrome, Edge and Other Browsers

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added CVE-2026-85046 to its Known Exploited Vulnerabilities catalog after confirming active exploitation in the wild. The flaw resides in the V8 JavaScript engine of Chromium and stems from a type confusion issue that can allow arbitrary code execution inside the sandbox when a crafted HTML page is processed. Google released a patch for Chrome on September 3, 2026, while the vulnerability carries a CVSS v3.1 base score of 8.8 and is rated High severity. Because numerous browsers including Microsoft Edge, Opera, and Vivaldi are built on Chromium, they are potentially exposed until their respective vendors issue updates. Security teams are advised to verify that all Chromium-based browsers in their environments have been updated to the latest versions containing the fix.

Critical Vulnerabilities Patched in VMware Workstation and Fusion Allowing Host Code Execution

Broadcom has disclosed two vulnerabilities in VMware Workstation and VMware Fusion rated as critical and important respectively. CVE-2026-59346 is an integer overflow flaw in the VMXNET3 virtual network adapter that can be exploited by a local administrator inside a virtual machine to execute arbitrary code on the host system, carrying a CVSS v3.1 base score of 9.3. CVE-2026-59347 is a stack-based buffer overflow in the HGFS file system that permits code execution on the host as the VMX process with a CVSS score of 8.1. Both issues were privately reported and affect users who run virtual machines with local administrative privileges. The flaws have been addressed in VMware Workstation 26H1u1 and VMware Fusion 26H1u1, and Broadcom urges immediate updates via advisory VMSA-2026-0007.

Google Chrome Patches 12 Vulnerabilities Including Actively Exploited V8 Zero-Day

Google has released security updates for Chrome addressing 12 vulnerabilities across Windows, macOS, and Linux platforms. The updates include versions 152.0.7977.83 and 152.0.7977.82 for Windows and macOS, and 152.0.7977.82 for Linux. No critical-rated flaws were fixed in this batch, but ten issues carry a high severity rating. The most notable is CVE-2026-85046, a type confusion flaw in the V8 JavaScript engine that was reported on August 4 and is already being exploited in the wild. Additional high-severity fixes cover a race condition in V8 (CVE-2026-85045), a use-after-free in Compositing (CVE-2026-85048), and another type confusion issue (CVE-2026-85051). This marks the second Chrome security update in three days.

CISA Adds Seven Exploited Vulnerabilities in SonicWall, JFrog and Kestra to KEV Catalog

The US Cybersecurity and Infrastructure Security Agency has added seven known exploited vulnerabilities affecting SonicWall SMA1000, JFrog Artifactory and Kestra OSS products to its KEV catalog. Five of the flaws carry a three-day remediation deadline for federal agencies. Two issues in SonicWall SMA1000 enable unauthenticated server-side request forgery and authenticated OS command execution. A critical authentication bypass in JFrog Artifactory allows remote attackers to obtain administrative privileges. Kestra OSS is affected by an OS command injection vulnerability that can lead to full system compromise. CISA urges immediate patching and incident response actions.

Cisco Issues Security Updates for IOS XR Fixing Multiple Critical Vulnerabilities

Cisco Systems has released security updates for its network operating system Cisco IOS XR to address multiple vulnerabilities discovered through internal research. The update, published on September 2, 2026, classifies the flaws into seven categories, each assigned distinct CVE identifiers. Two vulnerabilities, CVE-2026-20274 and CVE-2026-20279, received the highest CVSS v3.1 base score of 9.8 and are rated Critical. Additional issues include command injection flaws rated 8.8 and other weaknesses scoring between 8.2 and 8.6. No exploitation has been observed at the time of disclosure. Cisco is distributing Software Maintenance Updates and plans to include fixes in upcoming releases 26.3.1 and 26.2.2.