CVE-2025-27739

Estado: AnalizadaAlta (7.8)—

Untrusted pointer dereference in Windows Kernel allows an authorized attacker to elevate privileges locally.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Puntuación base: 7.8

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.63%
Percentil entre todas las CVEs puntuadas: 48
Fecha de la puntuación: 5/10/2026

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.

ExplotaciónT1068 Exploitation for Privilege Escalationprivilege escalation95 %
Impacto principalT1548 Abuse Elevation Control Mechanismprivilege escalation85 %
Impacto secundarioT1543.003 Windows Servicepersistence · privilege escalation70 %

Desreferencia de puntero no confiable en kernel de Windows con acceso local (AV:L PR:L) sin interacción del usuario; permite escalada de privilegios local a administrador/SYSTEM (C:H I:H A:H). Impactos: cambio de token de acceso (T1548) y potencial creación de servicios con privilegios elevados (T15

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

User Account Management Operating System Configuration Execution Prevention Audit Update Software Threat Intelligence Program

Tecnologías afectadas (10)

Microsoft — Windows 10 1809 Microsoft — Windows 10 21h2 Microsoft — Windows 10 22h2 Microsoft — Windows 11 22h2 Microsoft — Windows 11 23h2 Microsoft — Windows 11 24h2 Microsoft — Windows Server 2019 Microsoft — Windows Server 2022 Microsoft — Windows Server 2022 23h2 Microsoft — Windows Server 2025

CWE

CWE-822

Referencias

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-27739

JSON original (NVD)

Mostrar

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