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  4. CVE 2026 121638 watchguard authpoint gateway improper certificate
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Back to active CVEs
Critical · CVSS 9.1CVE-2026-121638

WatchGuard AuthPoint Gateway Improper Certificate Validation Allows Man-in-the-Middle AttacksCVE-2026-121638

Answer in brief

CVE-2026-121638 records a Critical severity (CVSS 9.1) vulnerability in WatchGuard AuthPoint Gateway Improper Certificate Validation Allows Man-in-the-Middle Attacks. The current sources do not mark it as known exploited. The current feed maps WatchGuard/AuthPoint Authentication Gateway (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Nov 4, 2026Updated Nov 4, 2026Source checked Nov 4, 2026First seen by HOL Nov 4, 2026Material review Nov 4, 2026
Upstream Advisory

Key facts

Risk
Critical · CVSS 9.1
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 9.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps WatchGuard/AuthPoint Authentication Gateway (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
WatchGuard/AuthPoint Authentication Gatewaygeneric>=1.0 <7.6.07.6.0

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for WatchGuard/AuthPoint Authentication Gateway.
  2. 2Review the reported fix. Source-reported solution: AuthPoint Authentication Gateway 7.6.0

Evidence timeline and material changes

  1. Published upstream

    Nov 4, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Nov 4, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Nov 4, 2026

Sources and claim methodology

  • Source referencepsirt.watchguard.com
Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • WatchGuard AuthPoint Gateway Improper HMAC Validation in LDAP Authentication Callback Allows Forged Authentication ResultsSame watchguard/authpoint authentication gateway package
  • WatchGuard AuthPoint Gateway Improper Authentication Allows Unauthenticated Denial of ServiceSame watchguard/authpoint authentication gateway package
  • WatchGuard AuthPoint Gateway Capture-replay Allows Unauthorized Administrative ActionsSame watchguard/authpoint authentication gateway package
  • Security Misconfiguration Vulnerability in Tata Motors iRA and iRA.ev mobile applicationAlso CWE-295

Record context

Vulnerability class
Missing Auth
EPSS
Not reported
CWE IDs
CWE-295
Source
CVE List V5
Source checked
Nov 4, 2026
References
1 linked source
Open source record