CVE-2024-21338

Estado: AnalizadaAlta (7.8)⚠ Explotación activa💥 Exploit

Windows Kernel Elevation of Privilege Vulnerability

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: 60%
Percentil entre todas las CVEs puntuadas: 99
Fecha de la puntuación: 7/10/2026

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: 4/3/2024
Plazo de remediación: 25/3/2024
Uso conocido en ransomware: Known

💥 Exploits públicos

Hay código de explotación o plantillas de detección públicos. No es lo mismo que explotación activa confirmada (KEV), pero aumenta el riesgo: parchee con prioridad.

Publicado en Exploit-DB · Microsoft Windows 11 - Kernel Privilege Escalation (22/4/2025)
Publicado en Exploit-DB · Microsoft Windows 10.0.17763.5458 - Kernel Privilege Escalation (2/4/2024)
Prueba de concepto en GitHub (no verificada) · Lista de pruebas de concepto en GitHub

⚠️ Las pruebas de concepto de GitHub no están verificadas: algunas son falsas o contienen malware. No las ejecute nunca fuera de un laboratorio aislado.

🎯 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 %

Vulnerabilidad local del kernel (AV:L, PR:L) que permite escalada de privilegios (CWE-822, impacto I:H). Explotada activamente por ransomware sugiere ejecución de comandos con privilegios elevados.

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 (9)

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

CWE

CWE-822
NVD-CWE-noinfo

Referencias

JSON original (NVD)

Mostrar

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