CVE-2026-50751

Improper Authentication in Check Point Security Gateway. CISA confirmed attackers exploit it and added it to its Known Exploited Vulnerabilities catalog on 8 June 2026.

Product
Check Point Security Gateway
Added to CISA's catalog
Federal fix-by date
Ransomware
Known to be used in ransomware

CISA’s description.

Check Point Security Gateway contains an improper authentication vulnerability in IKEv1 key exchange that could allow an unauthenticated remote attacker to bypass user authentication and establish a remote access VPN connection without a valid user password.

Every flaw CISA confirmed exploited in the last 30 days is on the exploit watch. This is not security advice. Check the vendor’s advisory before acting. From CISA’s catalog of 4 November 2026.