CVE-2025-48799

Estado: AnalizadaAlta (7.8)—

Improper link resolution before file access ('link following') in Windows Update Service 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: 1.16%
Percentil entre todas las CVEs puntuadas: 66
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.

ExplotaciónT1068 Exploitation for Privilege Escalationprivilege escalation95 %

CWE-59 (link following) con AV:L/PR:L/UI:N permite escalada de privilegios local sin interacción. Windows Update Service vulnerable a symlink attacks para elevar a SYSTEM.

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

Threat Intelligence Program Execution Prevention Application Isolation and Sandboxing Exploit Protection Update Software

Tecnologías afectadas (8)

Microsoft — Windows 10 1607 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 2025

CWE

CWE-59

Referencias

JSON original (NVD)

Mostrar

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      "value": "Improper link resolution before file access ('link following') in Windows Update Service allows an authorized attacker to elevate privileges locally."
    },
    {
      "lang": "es",
      "value": "La resolución incorrecta de un vínculo antes del acceso a un archivo ('seguimiento de un vínculo') en Windows Update Service permite que un atacante autorizado eleve privilegios localmente."
    }
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