← CVE catalog

CVE-2026-50751

Critical CVSS 9.3 Known exploited

Published 2026-06-08 · last changed 2026-08-04 · added to CISA KEV 2026-06-08

This one is being exploited in the wild.

CISA added CVE-2026-50751 to the Known Exploited Vulnerabilities catalog on 2026-06-08. Federal agencies are required to remediate it on a deadline. If you have affected machines, this is the class of finding that moves ahead of the rest of the queue.

The fix

We hold no Microsoft remediation data for CVE-2026-50751, which normally means it is not a Windows CVE. For non-Microsoft software the fix is the vendor's own updated release, and the affected versions are listed below.

What it is

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.

Sources

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