CVE-2026-55014

Estado: AnalizadaAlta (7.8)—

Improper access control in Windows Remote Help Defense 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: 0.30%
Percentil entre todas las CVEs puntuadas: 20
Fecha de la puntuación: 3/10/2026

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 secundarioT1078.003 Local Accountsstealth · persistence · privilege escalation · initial access75 %

Acceso local (AV:L) sin interacción de usuario (UI:N) con deficiencia de control de acceso (CWE-284) permite escalada de privilegios local. El atacante autorizado obtiene acceso con privilegios elevados en el contexto de Windows.

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 Privileged Account Management Execution Prevention Update Software Threat Intelligence Program Restrict File and Directory Permissions

Tecnologías afectadas (1)

Microsoft — Remote Help

CWE

CWE-284

Referencias

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55014

JSON original (NVD)

Mostrar

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  "published": "2026-07-14T17:17:09.217",
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