Patch Forecast
Amber warning
Patch this week.

CVE-2026-121639

A Missing Authentication for Critical Function vulnerability in WatchGuard AuthPoint Gateway allows…

Risk score
60/100
CVSS
9.2 v4.0
Published
4 Nov 2026

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What to know

What it is
A Missing Authentication for Critical Function vulnerability in WatchGuard AuthPoint Gateway allows a remote unauthenticated attacker with network access to the AuthPoint Gateway host to disrupt authentication services and delete the local directory synchronization configuration.
Affected
See advisory
Fix
Apply the vendor's security update; see the linked advisory.
Exploitation
No known exploitation

In the news

TL;DR

WatchGuard releases patches for critical vulnerabilities in AuthPoint Gateway, including CVE-2026-121639, a missing authentication flaw.

  • WatchGuard patches four critical authentication issues in AuthPoint Gateway.
  • CVE-2026-121639 allows remote unauthenticated attackers to disrupt authentication services.
  • No reports of exploitation in the wild, according to WatchGuard.
  • Patches available for Fireware OS and WatchGuard AP, but not for Dimension due to lack of patches for Ubuntu version.

AI summary of 1 article.

Why it is Amber

  • CVSS 9.2 critical
  • Remotely exploitable without logging in

References

Original description

A Missing Authentication for Critical Function vulnerability in WatchGuard AuthPoint Gateway allows a remote unauthenticated attacker with network access to the AuthPoint Gateway host to disrupt authentication services and delete the local directory synchronization configuration.

Last activity 4 Nov 2026. Patch Forecast updates every hour.