CVE-2019-0541
Estado: AnalizadaAlta (8.8)⚠ Explotación activa
A remote code execution vulnerability exists in the way that the MSHTML engine inproperly validates input, aka "MSHTML Engine Remote Code Execution Vulnerability." This affects Microsoft Office, Microsoft Office Word Viewer, Internet Explorer 9, Internet Explorer 11, Microsoft Excel Viewer, Internet Explorer 10, Office 365 ProPlus.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Puntuación base: 8.8
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 53%
- Percentil entre todas las CVEs puntuadas: 99
- 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).
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
T1203Exploitation for Client Executionexecution85 % - Impacto principal
T1059Command and Scripting Interpreterexecution90 % - Impacto secundario
T1005Data from Local Systemcollection60 %
Vulnerabilidad en motor MSHTML requiere interacción del usuario (UI:R) para ejecutar código remoto. Afecta navegadores y aplicaciones Office, permitiendo ejecución de comandos arbitrarios tras validación impropia de entrada.
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 (5)
CWE
- CWE-77
- CWE-77
Referencias
- http://www.securityfocus.com/bid/106402
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0541
- https://www.exploit-db.com/exploits/46536/
- http://www.securityfocus.com/bid/106402
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0541
- https://www.exploit-db.com/exploits/46536/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-0541
JSON original (NVD)
Mostrar
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