CVE-2021-33739

Estado: AnalizadaAlta (7.8)⚠ Explotación activa

Microsoft DWM Core Library Elevation of Privilege Vulnerability

CVSS

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

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 6.55%
Percentil entre todas las CVEs puntuadas: 94
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).

CISA KEV — explotada activamente

Añadida al catálogo: 3/11/2021
Plazo de remediación: 17/11/2021
Uso conocido en ransomware: Unknown

🎯 Técnicas ATT&CK

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

ExplotaciónT1203 Exploitation for Client Executionexecution95 %
Impacto secundarioT1548 Abuse Elevation Control Mechanismprivilege escalation80 %

Explotación corregida por reglas (vector CVSS): era T1068

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

Update Software User Account Management Restrict File and Directory Permissions Privileged Account Management Operating System Configuration Execution Prevention

Tecnologías afectadas (6)

Microsoft — Windows 10 1909 Microsoft — Windows 10 2004 Microsoft — Windows 10 20h2 Microsoft — Windows 10 21h1 Microsoft — Windows Server 2004 Microsoft — Windows Server 20h2

CWE

NVD-CWE-noinfo

Referencias

JSON original (NVD)

Mostrar

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