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