CVE-2026-100223

Alta (7.8)—

Planificar el parcheGravedad Alta 7.8. Sin exploit público ni explotación activa conocidos.

Gravedad7.8Alta · CVSS 3.1

Probabilidad de explotación0.32 %mayor que el 25 % de las CVE · dato del 11 nov 2026

Explotación activaNono figura en el catálogo de CISA · comprobado 12 nov, 03:00

Exploit públicoNo conocidosin código público localizado

Noticias y reportajes en Orbitaley

Existe una vulnerabilidad de escalada de privilegios cuando los procesos en sandbox crean puntos de reanálisis (reparse points), lo que permite escapar del sandbox (sandbox escape). Un atacante que explotase con éxito la vulnerabilidad podría utilizar el escape del sandbox para escalar privilegios en un sistema afectado. Para explotar la vulnerabilidad, un atacante primero tendría que iniciar sesión en el sistema y, a continuación, ejecutar una aplicación especialmente diseñada para tomar el control del sistema afectado. La actualización de seguridad corrige la vulnerabilidad impidiendo que los procesos en sandbox creen puntos de reanálisis que apunten a archivos inaccesibles.

Traducción automática del texto original de NVD (en inglés).

Cronología

Elaborada con nuestros propios datos: NVD, CISA KEV y otros catálogos de explotación, FIRST EPSS, exploits públicos, prensa especializada y la cobertura de Orbitaley.

10 nov 2026Registro CVE publicado en NVD
10 nov 2026Alerta: Microsoft corrige 200 vulnerabilidades, entre ellas un fallo de Outlook que CISA confirma como explotado

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 escalation90 %

El vector CVSS es AV:L/PR:L/UI:N y el texto describe escape de sandbox por reparse points para elevar privilegios; no se menciona ejecución de comandos, así que no se asigna T1059.

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 (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Microsoft — Windows^AI

Registro NVD

Estado en NVD: Pendiente de análisis
Publicada: 10 nov 2026
Última modificación: 10 nov 2026
Vector CVSS: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Debilidad (CWE): CWE-416

Referencias

Referenciamsrc.microsoft.com/update-guide/vulnerability/CVE-2026-100223

JSON original (NVD)

Mostrar

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    }
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      "value": "An elevation of privilege vulnerability exists when reparse points are created by sandboxed processes allowing sandbox escape. An attacker who successfully exploited the vulnerability could use the sandbox escape to elevate privileges on an affected system.\nTo exploit the vulnerability, an attacker would first have to log on to the system, and then run a specially crafted application to take control over the affected system.\nThe security update addresses the vulnerability by preventing sandboxed processes from creating reparse points targeting inaccessible files."
    }
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  "lastModified": "2026-11-10T22:17:47.587",
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}