Read the docs
TI-2026-85076 Aliases CVE-2026-121639GHSA-836c-pvq3-wxwg

Missing authentication in WatchGuard AuthPoint Gateway allows denial of service

Priority MEDIUM 47CWE-252Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
None · Low · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-287.

Summary

WatchGuard AuthPoint Authentication Gateway from 1.0 before 7.6.0 is affected. A missing authentication check for a critical function (CWE-306) lets a remote attacker with network access to the gateway host, without credentials, disrupt authentication services and delete the local directory synchronization configuration.

Written with Claude Haiku 5.5 from the sources below · 2026-11-04

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00671 52nd percentileScored 2026-11-07
Fix Fixed AuthPoint Authentication Gateway (WatchGuard): 7.6.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
WatchGuardAuthPoint Authentication Gateway1.0 to before 7.6.07.6.0Patch availableCNA
  • AuthPoint Authentication Gateway VendorWatchGuard Affected 1.0 to before 7.6.0 Fixed in 7.6.0 Patch available CNA

Remediation

WatchGuard AuthPoint Authentication Gateway 7.6.0 fixes this flaw, so update from versions before 7.6.0 to 7.6.0 or later.

Written with Claude Haiku 5.5 from the sources below · 2026-11-04

  • Fix · CNA AuthPoint Authentication Gateway (WatchGuard) Fixed in 7.6.0

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    WatchGuard AuthPoint Authentication Gateway 7.6.0

    4 records Highest priority Priority MEDIUM 3 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2026-85075 WatchGuard AuthPoint Gateway certificate validation flaw enables interceptionPriority MEDIUM 41
    • TI-2026-85077 Capture-replay authentication bypass in WatchGuard AuthPoint GatewayPriority MEDIUM 40
    • TI-2026-85074 Improper HMAC validation in WatchGuard AuthPoint Gateway allows forged loginsPriority LOW 38
    Show all 4 records →

Timeline

  1. 2026-11-04 Threatist record created from CVE-2026-121639
  2. 2026-11-04 Alias added: GHSA-836c-pvq3-wxwg
  3. 2026-11-04 CISA SSVC decision points changed

References

Advisory 1

  • TI-2022-09698 On WatchGuard Firebox and XTM appliances, an unauthenticated user can execute arbitrary… KEVCVSS 3.1CRITICAL 9.8
  • TI-2025-13451 WatchGuard Firebox iked Out of Bounds Write Vulnerability KEVCVSS 4.0CRITICAL 9.3
  • TI-2025-08474 WatchGuard Firebox iked Out of Bounds Write Vulnerability KEVCVSS 4.0CRITICAL 9.3
  • TI-2022-07330 WatchGuard Firebox and XTM appliances allow a remote attacker with unprivileged… KEVCVSS 3.1HIGH 8.8
  • TI-2023-19293 A DLL hijacking vulnerability in Panda Security VPN for Windows prior to version v15.14.8… CVSS 3.1MEDIUM 6.5
  • TI-2015-04587 Watchguard XCS 9.2 and 10.0 before build 150522 allow remote authenticated users to… CVSS 2.0MEDIUM 6.5
See all 203 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences