CVE-2026-123039: Check Point Multiple Products Incorrect Permission Assignment for Critical Resource Vulnerability
Elevated⚠ Actively exploited (CISA KEV)
Elevated
Severity
Active
CISA KEV
No
Ransomware use
Nov 16, 2026
Patch deadline
⚠ Exploited in the wild. CISA added CVE-2026-123039 to its Known Exploited Vulnerabilities catalog on Nov 13, 2026, with a federal patch deadline of Nov 16, 2026 — meaning attackers are actively using it. If you run the affected software, patch it immediately.
Check Point Firewall, Multi-Domain Security Management Server, Scalable Platforms, Security Gateway, and Security Management Server contain an incorrect permissions assignment for critical resources…
Details
AffectedCheck Point · Multiple Products
WeaknessCWE-732
Added to CISA KEVNov 13, 2026
Federal patch deadlineNov 16, 2026
Known ransomware useNot documented
Frequently asked questions
Is CVE-2026-123039 being actively exploited?
Yes — CISA lists CVE-2026-123039 in its Known Exploited Vulnerabilities (KEV) catalog, so it is confirmed exploited in the wild. Patch it as a priority.
What does CVE-2026-123039 affect?
CVE-2026-123039 affects Check Point · Multiple Products.
How do I fix CVE-2026-123039?
Apply the vendor’s patch for the affected software. The federal patch deadline was Nov 16, 2026. Then check whether your personal data was exposed in any related breach.