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CISA Adds Exploited Flaws in FortiOS and VeloCloud Orchestrator 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-2026-16812 affects the on-premises version of Arista VeloCloud Orchestrator and allows OS command injection that can lead to data leakage, tampering, and denial of service. The flaw carries a maximum CVSS v3.1 base score of 10.0 and is rated Critical. CVE-2025-68686 impacts Fortinet FortiOS and can be used to bypass specific patches and steal sensitive information when combined with another vulnerability that grants prior filesystem access. Federal agencies must remediate the VeloCloud issue by July 30 and the FortiOS issue by August 10.

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The US Cybersecurity and Infrastructure Security Agency (CISA) has added two vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog, confirming that both flaws are being actively exploited in cyberattacks.

The first vulnerability, CVE-2026-16812, resides in the on-premises edition of Arista VeloCloud Orchestrator, an SD-WAN management product. It is an OS command injection flaw that grants attackers access to internal functions normally reserved for privileged users. Successful exploitation can result in leakage or tampering of the orchestrator itself and managed data, as well as denial-of-service conditions. The flaw received the maximum CVSS v3.1 base score of 10.0 and is rated Critical. CISA set a remediation deadline of July 30 for US federal agencies.

The second vulnerability, CVE-2025-68686, affects Fortinet FortiOS, the operating system used on Fortinet network devices. It permits attackers to bypass certain security patches and exfiltrate sensitive information. Exploitation requires prior access to the target file system and is typically combined with another vulnerability. Federal agencies must address this issue by August 10.

CISA published the updates on July 27 and urged organizations to apply available mitigations immediately.

FortinetArista VeloCloud OrchestratorFortiOSCVE-2026-16812CVE-2025-68686
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