Check Point Patches Critical Zero-Day CVE-2026-93616 Enabling Unauthenticated Remote Code Execution on Management Servers

Check Point has addressed a critical zero-day vulnerability tracked as CVE-2026-93616 with a CVSS score of 9.8 that allowed remote unauthenticated attackers to upload and execute arbitrary scripts on management servers. The flaw combined directory traversal with insecure file handling, enabling attackers to escape the intended directory and place scripts in executable locations. Affected products include Security Management Server, Multi-Domain Security Management Server, Log Server, Multi-Domain Log Server, and SmartEvent. Targeted attacks were observed starting July 23 before public disclosure, though exploitation remained limited. Vulnerable versions span multiple R82, R81, and R80 releases, with fixes now available through specific hotfixes and Jumbo Takes. Administrators are advised to apply patches immediately, place management servers behind a Security Gateway, and restrict TCP port 19009 access. Detection guidance includes reviewing cpm.elg logs for unusually long usernames and ReflectionUtils errors containing directory traversal sequences.

BoletimSecSeptember 24, 2026Translated from Portuguese

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Check Point has patched a critical zero-day vulnerability identified as CVE-2026-93616 that permitted remote unauthenticated attackers to upload and execute arbitrary scripts on its management servers.

The flaw received a CVSS score of 9.8 and was exploited in targeted attacks first detected on July 23. Attackers combined directory traversal techniques with insecure file upload behavior to escape the designated directory and place scripts in locations where they would be automatically executed.

Affected Products

The vulnerability impacted core management and logging components responsible for security policy administration and log aggregation across an organization’s infrastructure:

Security Management Server
Multi-Domain Security Management Server
Log Server
Multi-Domain Log Server
SmartEvent

Vulnerable versions include R82.20, R82.10 with Jumbo Hotfix Take 44 or earlier, R82 with Take 126 or earlier, R81.20 with Take 166 or earlier, R81.10 with Take 190 or earlier, and all R80.x and R81.x lines.

Remediation and Detection

Patches are available via the Security Hotfix for R82.20 and updated takes including R82.10 Take 45, R82 Take 127, R81.20 Take 170, and R81.10 Take 192 or later. In addition to applying fixes, Check Point recommends placing management servers behind a Security Gateway and restricting access to TCP port 19009 to trusted IP addresses only.

To identify potential compromise, administrators should examine the cpm.elg log for abnormally long usernames and ReflectionUtils errors containing directory traversal sequences.

Check Point CVE-2026-93616 Security Management Server Multi-Domain Security Management SmartEvent Log Server

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