CVE-2025-47994

Estado: AnalizadaAlta (8.6)—

Deserialization of untrusted data in Microsoft Office allows an unauthorized attacker to elevate privileges locally.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Puntuación base: 8.6

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 3.01%
Percentil entre todas las CVEs puntuadas: 87
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.

ExplotaciónT1203 Exploitation for Client Executionexecution90 %
Impacto principalT1068 Exploitation for Privilege Escalationprivilege escalation85 %
Impacto secundarioT1059 Command and Scripting Interpreterexecution80 %

Vector CVSS AV:L + UI:R indica ejecución en cliente (abrir documento). CWE-502 (deserialización) permite escalada de privilegios local. Impactos: T1068 (obtiene privilegios) y T1059 (ejecución de código).

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

Execution Prevention Application Isolation and Sandboxing Exploit Protection Update Software Threat Intelligence Program Restrict Web-Based Content

Tecnologías afectadas (4)

Microsoft — 365 Apps Microsoft — Office Microsoft — Office Long Term Servicing Channel Microsoft — Sharepoint Enterprise Server

CWE

CWE-502

Referencias

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-47994

JSON original (NVD)

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