Detections
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CVE-2026-50751

critical

Description

A logic flow weakness in Remote Access and Mobile Access certificate validation in deprecated IKEv1 key exchange allows an unauthenticated remote attacker to bypass user authentication and establish a remote access VPN connection without a valid user password.

References

https://latesthackingnews.com/2026/06/12/check-point-vpn-authentication-bypass-cve-2026-50751-client-controlled-ikev1-auth-flipped-by-ransomware-affiliate/

https://labs.watchtowr.com/marking-your-own-homework-check-point-remote-access-vpn-ikev1-authentication-bypass-cve-2026-50751/

https://www.securityweek.com/check-point-vpn-zero-day-exploited-in-qilin-ransomware-attacks/

https://www.infosecurity-magazine.com/news/check-point-critical-auth-bypass/

https://www.hipaajournal.com/check-point-vpn-google-chrome-vulnerabilities-under-active-exploitation/

https://www.bleepingcomputer.com/news/security/cisa-orders-feds-to-patch-check-point-flaw-exploited-by-ransomware-gangs/

https://securityaffairs.com/193343/security/u-s-cisa-adds-berriai-litellm-and-check-point-security-gateway-flaws-to-its-known-exploited-vulnerabilities-catalog.html

https://blog.checkpoint.com/security/check-point-releases-important-hotfix-for-vulnerabilities-in-deprecated-ikev1-vpn-protocol/

https://www.theregister.com/cyber-crime/2026/06/08/attackers-had-month-long-head-start-on-patched-check-point-vpn-zero-day/5252438

https://www.helpnetsecurity.com/2026/06/08/check-point-cve-2026-50751-qilin-ransomware/

https://www.darkreading.com/vulnerabilities-threats/check-point-vpn-flaw-exploited-early-may

https://www.cisa.gov/news-events/alerts/2026/06/08/cisa-adds-two-known-exploited-vulnerabilities-catalog

https://www.bleepingcomputer.com/news/security/check-point-links-vpn-zero-day-attacks-to-qilin-ransomware-gang/

https://thehackernews.com/2026/06/critical-check-point-vpn-flaw-exploited.html

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-50751

https://support.checkpoint.com/results/sk/sk185033

Details

Source: Mitre, NVD

Published: 2026-06-08

Updated: 2026-06-09

Known Exploited Vulnerability (KEV)

Risk Information

CVSS v2

Base Score: 8.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:P/A:N

Severity: High

CVSS v3

Base Score: 9.3

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N

Severity: Critical

CVSS v4

Base Score: 9.3

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N

Severity: Critical

EPSS

EPSS: 0.71051

Vulnerability Watch

Tenable Research has classified this CVE under the following Vulnerability Watch classification, which includes active and historical (inactive) classifications. You can learn more about these classifications on our blog.

Vulnerability of Interest