CVE-2025-53379

Estado: AnalizadaAlta (7.5)—

A out-of-bounds read vulnerability in Fortinet FortiAuthenticator 6.6.0 through 6.6.2, FortiAuthenticator 6.5 all versions may allow a remote unauthenticated attacker to retrieve sensitive information via a specially crafted request.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Puntuación base: 7.5

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.53%
Percentil entre todas las CVEs puntuadas: 43
Fecha de la puntuación: 6/10/2026

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

ExplotaciónT1190 Exploit Public-Facing Applicationinitial access92 %
Impacto principalT1005 Data from Local Systemcollection88 %
Impacto secundarioT1552 Unsecured Credentialscredential access75 %

Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N indica red sin autenticación → T1190. CWE-125 (out-of-bounds read) permite lectura de memoria sensible (T1005). El acceso a datos de autenticador puede incluir credenciales (T1552).

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Privileged Account Management Limit Access to Resource Over Network Filter Network Traffic Update Software Active Directory Configuration Vulnerability Scanning

Tecnologías afectadas (1)

Fortinet — Fortiauthenticator

CWE

CWE-125

Referencias

https://fortiguard.fortinet.com/psirt/FG-IR-26-146

JSON original (NVD)

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