---
id: CVE-2026-121639
title: >-
  WatchGuard AuthPoint Gateway Improper Authentication Allows Unauthenticated
  Denial of Service
summary: >-
  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 loc…
severity: critical
cvss: 9.2
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:H'
cvssSource: cna
cwe:
  - CWE-252
  - CWE-287
  - CWE-306
vendor: WatchGuard
product: AuthPoint Authentication Gateway
affected:
  - authpoint_authentication_gateway >= 1.0 < 7.6.0
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-11-04T16:38:22.413696Z'
published: '2026-11-04'
updated: '2026-11-04'
sourceUpdated: '2026-11-04T18:20:22.160Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-121639'
references:
  - url: 'https://psirt.watchguard.com/CVE-2026-121639'
tags:
  - cve.org
ingestedAt: '2026-11-05T21:36:00.483Z'
---

## Overview

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

- `authpoint_authentication_gateway >= 1.0 < 7.6.0`

## Remediation

AuthPoint Authentication Gateway 7.6.0