Check Point Vulnerability Lets Remote Hackers Gain Root Access Without Authentication
Check Point patched CVE-2026-91843, a CVSS 9.8 pre-auth stack overflow granting remote root on Security Management and Log Servers.
Check Point released an urgent fix for CVE-2026-91843 (CVSS 3.1: 9.8), a stack-based buffer overflow triggered by an excessively long username during login that lets an unauthenticated remote attacker execute arbitrary code with root privileges. Affected products include Security Management Server, Multi-Domain Security Management Server, and Log Servers across releases from R80 through R82.20, with fixes delivered via LivePatch and urgent Take packages. The vendor reports no observed exploitation in the wild, and administrators are advised to verify patch deployment and restrict SmartConsole Trusted Clients.
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