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TI-2026-85075 Aliases CVE-2026-121638GHSA-97r6-h6fj-p27h

WatchGuard AuthPoint Gateway certificate validation flaw enables interception

Priority MEDIUM 41CWE-295Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-295.

Summary

WatchGuard AuthPoint Authentication Gateway from 1.0 before 7.6.0 does not properly validate certificates (CWE-295). An attacker with an on-path network position can intercept and modify traffic between the gateway and local authentication providers. The sources do not report known exploitation.

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

Description from the CNA

An Improper Certificate Validation vulnerability in WatchGuard AuthPoint Gateway allows an attacker with an on-path network position to intercept and modify communications between the AuthPoint Gateway and local authentication providers.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00292 21st 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
No
Technical impact
Total

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

Upgrade WatchGuard AuthPoint Authentication Gateway to version 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-2026-85076 Missing authentication in WatchGuard AuthPoint Gateway allows denial of servicePriority MEDIUM 47
    • 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-2026-121638
  2. 2026-11-04 Alias added: GHSA-97r6-h6fj-p27h
  3. 2026-11-04 CISA SSVC decision points changed
  4. 2026-11-04 Priority changed: MEDIUM → LOW
  5. 2026-11-06 Priority changed: LOW → MEDIUM

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