CVE-2020-0646
Estado: AnalizadaCrítica (9.8)⚠ Explotación activa
A remote code execution vulnerability exists when the Microsoft .NET Framework fails to validate input properly, aka '.NET Framework Remote Code Execution Injection Vulnerability'.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Puntuación base: 9.8
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 99%
- Percentil entre todas las CVEs puntuadas: 100
- Fecha de la puntuación: 2/10/2026
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: 3/5/2022
- 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.
- Explotación
T1190Exploit Public-Facing Applicationinitial access95 % - Impacto principal
T1059.001PowerShellexecution90 % - Impacto secundario
T1565.001Stored Data Manipulationimpact70 %
Vector AV:N/AC:L/PR:N sin interacción usuario confirma T1190. Validación insuficiente en .NET permite RCE remota. Impactos: ejecución de comandos (CVSS I:H), persistencia potencial y manipulación de datos por acceso crítico (C:H/I:H).
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 (1)
CWE
- CWE-91
- CWE-91
Referencias
- http://packetstormsecurity.com/files/156930/SharePoint-Workflows-XOML-Injection.html
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0646
- http://packetstormsecurity.com/files/156930/SharePoint-Workflows-XOML-Injection.html
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0646
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-0646
JSON original (NVD)
Mostrar
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