CVE-2022-21882
Estado: AnalizadaAlta (7.8)⚠ Explotación activa
Win32k 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: 59%
- Percentil entre todas las CVEs puntuadas: 99
- Fecha de la puntuación: 4/10/2026
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: 4/2/2022
- Plazo de remediación: 18/2/2022
- Uso conocido en ransomware: Known
🎯 Técnicas ATT&CK
Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.
- Explotación
T1068Exploitation for Privilege Escalationprivilege escalation95 % - Impacto principal
T1059Command and Scripting Interpreterexecution90 % - Impacto secundario
T1486Data Encrypted for Impactimpact85 %
Vulnerabilidad Win32k con AV:L y PR:L permite escalada de privilegios local (T1068). Una vez elevados, permite ejecución de código (T1059) y ransomware confirmado en uso activo (T1486).
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
Tecnologías afectadas (9)
CWE
- CWE-787
- CWE-787
Referencias
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-21882
- http://packetstormsecurity.com/files/166169/Win32k-ConsoleControl-Offset-Confusion-Privilege-Escalation.html
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-21882
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-21882
JSON original (NVD)
Mostrar
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