CVE-2026-121637: fallo de gravedad alta en WatchGuard AuthPoint Authentication Gateway
WatchGuard AuthPoint Gateway Improper HMAC Validation in LDAP Authentication Callback Allows Forged Authentication Results
Publicada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
21Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 8.9epss 0.3%
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.
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N
Productos afectados
WatchGuard · AuthPoint Authentication GatewayCVEs relacionadas — WatchGuard AuthPoint Authentication Gateway
En el mismo producto, de las más peligrosas a las menos.
CVE-2026-121639CRITICALWatchGuard AuthPoint Gateway Improper Authentication Allows Unauthenticated Denial of ServiceEPSS 0.7%CVE-2026-121640CRITICALWatchGuard AuthPoint Gateway Capture-replay Allows Unauthorized Administrative ActionsEPSS 0.5%CVE-2026-95676HIGHAuthPoint Gateway Improper Authentication in LDAP Sync Allows First-Factor Authentication BypassEPSS 0.4%CVE-2026-121638CRITICALWatchGuard AuthPoint Gateway Improper Certificate Validation Allows Man-in-the-Middle AttacksEPSS 0.3%
Referencias
https://psirt.watchguard.com/CVE-2026-121637