CVE-2026-121637 (GCVE-0-2026-121637)
Vulnerability from cvelistv5 – Published: 2026-11-04 14:44 – Updated: 2026-11-04 18:20
VLAI
EPSS
VEX
Title
WatchGuard AuthPoint Gateway Improper HMAC Validation in LDAP Authentication Callback Allows Forged Authentication Results
Summary
An improper integrity validation vulnerability in WatchGuard AuthPoint Gateway's LDAP authentication callback allows a network attacker who has obtained a valid header signature to forge the authentication result and transaction identifier in the request body, resulting in unauthorized session outcomes.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-04 16:38 UTC
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://psirt.watchguard.com/CVE-2026-121637 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| WatchGuard | AuthPoint Authentication Gateway |
Affected:
1.0 , < 7.6.0
(semver)
cpe:2.3:a:watchguard:authpoint_authentication_gateway:*:*:*:*:*:*:*:* |
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