Exploited vulnerability · CISA KEV

Is CVE-2026-50751 exploited? Yes: in CISA KEV since 8 Jun 2026

Gociux · Check Point Security Gateway · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2026-50751, Check Point Security Gateway Improper Authentication Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 8 Jun 2026, the day it was published. It is known to be used in ransomware campaigns. It affects Check Point Security Gateway, an internet-facing product of the kind attackers use for initial access. If you run it, CISA's required action is: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

What it is

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.

What to do

1. Check whether you run it. Look for Security Gateway in your asset inventory, including appliances and cloud images. Stack check lists every exploited Check Point CVE at once.
2. Apply the fix. Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 8 Jun 2026.
4. Get told next time. Email alerts when CISA adds a CVE for Check Point.

References

• blog.checkpoint.com/security/check-point-releases-important-hotfix-for-vulnerab
• support.checkpoint.com/results/sk/sk185033
• nvd.nist.gov/vuln/detail/CVE-2026-50751

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in June 2026 · Check Point scorecard · act-now radar.