CVE-2026-50751 — Check Point Security Gateway Improper Authentication Vulnerability
CVE-2026-50751: Check Point Security Gateway Improper Authentication Vulnerability
CISA Known Exploited Vulnerability (KEV)
| Vendor / project | Check Point |
| Product | Security Gateway |
| Date added | 2026-06-08 |
| Due date | 2026-06-11 |
| Ransomware campaign use | Known |
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.
Required action (CISA)
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Notes
https://blog.checkpoint.com/security/check-point-releases-important-hotfix-for-vulnerabilities-in-deprecated-ikev1-vpn-protocol/ ; https://support.checkpoint.com/results/sk/sk185033?_gl=11wqeqhc_gcl_au*MTI1MzE5MjI2LjE3ODA5MzQ1NTM. ; https://nvd.nist.gov/vuln/detail/CVE-2026-50751
References
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-50751
- KEV catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog