---
id: "CVE-2026-121639"
kind: "vulnerability"
aliases: ["CVE-2026-121639"]
title: "WatchGuard AuthPoint Gateway before 7.6.0: unauthenticated attacker can disrupt logins and delete sync config"
severity: "critical"
cvss: 9.2
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: [{"name": "AuthPoint Authentication Gateway", "fixed": ["7.6.0"], "affected": ">= 1.0, < 7.6.0", "ecosystem": "vendor"}]
ecosystems: []
tags: ["authpoint", "infrastructure", "ldap", "mfa", "on-prem", "radius", "watchguard"]
not_affected_if: ["gateway-version-7.6.0-or-later", "no-authpoint-gateway"]
published_at: "2026-11-04T15:17:42+00:00"
first_seen_at: "2026-11-04T15:27:31+00:00"
updated_at: "2026-11-04T15:30:02+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-121639", "first_seen_at": "2026-11-04T15:27:31+00:00"}, {"source": "analyst", "url": null, "first_seen_at": "2026-11-04T15:30:02+00:00"}]
---

# WatchGuard AuthPoint Gateway before 7.6.0: unauthenticated attacker can disrupt logins and delete sync config

WatchGuard AuthPoint Gateway is missing an authentication check on a critical function. A remote attacker with network access to the gateway host can disrupt authentication services and delete the local directory synchronization configuration.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- vendor:AuthPoint Authentication Gateway affected >= 1.0, < 7.6.0 fixed 7.6.0

## How to check

- Find every AuthPoint Gateway install (RADIUS/LDAP sync host) and check its version; anything below 7.6.0 is affected.
- Check whether the gateway host is reachable from networks you do not trust; restrict it to the networks that need it until you upgrade (general hardening, not a WatchGuard-stated workaround).
- Teams without an on-prem AuthPoint Gateway can skip this.

## Fix

Upgrade AuthPoint Gateway to 7.6.0 or later (released 29 October 2026; download from WatchGuard Cloud).

## Timeline

- 2026-11-04T15:27:31+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-121639
- 2026-11-04T15:30:02+00:00 analyst — WatchGuard PSIRT listing (2026-11-04): AuthPoint Authentication Gateway >=1.0,<7.6.0 affected, 7.6.0 fixed, CVSS 4.0 9.2. Per-CVE page not found, so impact details rest on NVD text. 7.6.0 released 29 Oct 2026 per release notes. No exploitation or PoC found; no mitigations listed.

## Documents

- [advisory] WatchGuard Security Advisories (PSIRT listing) https://psirt.watchguard.com/
- [fix] AuthPoint Gateway releases (v7.6.0, 29 Oct 2026) https://www.watchguard.com/support/release-notes/Cloud/Content/en-US/AuthPoint/agent_releases.html

## From the sources

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.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_