CVE-2019-0841

Estado: AnalizadaAlta (7.8)⚠ Explotación activa

An elevation of privilege vulnerability exists when Windows AppX Deployment Service (AppXSVC) improperly handles hard links, aka 'Windows Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-0730, CVE-2019-0731, CVE-2019-0796, CVE-2019-0805, CVE-2019-0836.

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: 41%
Percentil entre todas las CVEs puntuadas: 99
Fecha de la puntuación: 6/10/2026

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: 15/3/2022
Plazo de remediación: 5/4/2022
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.

ExplotaciónT1068 Exploitation for Privilege Escalationprivilege escalation95 %

Vulnerabilidad de escalada de privilegios en Windows AppX Deployment Service mediante manejo incorrecto de hard links. Vector AV:L/PR:L confirma explotación local con privilegios. Uso activo por ransomware indica impacto de 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 (6)

Microsoft — Windows 10 1703 Microsoft — Windows 10 1709 Microsoft — Windows 10 1803 Microsoft — Windows 10 1809 Microsoft — Windows Server 2016 Microsoft — Windows Server 2019

CWE

CWE-59
CWE-59

Referencias

JSON original (NVD)

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      "lang": "en",
      "value": "An elevation of privilege vulnerability exists when Windows AppX Deployment Service (AppXSVC) improperly handles hard links, aka 'Windows Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-0730, CVE-2019-0731, CVE-2019-0796, CVE-2019-0805, CVE-2019-0836."
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      "value": "Existe una elevación de la vulnerabilidad de privilegios cuando el Servicio de implementación de Windows AppX (AppXSVC) maneja incorrectamente los enlaces físicos, también conocida como \"Vulnerabilidad de Elevación Privilegios de Windows\". El ID de este CVE es diferente de CVE-2019-0730, CVE-2019-0731, CVE-2019-0796, CVE-2019-0805 y CVE-2019-0836."
    }
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