CVE-2026-103571

Alta (7)—

Planificar el parcheGravedad Alta 7. Sin exploit público ni explotación activa conocidos.

Gravedad7Alta · CVSS 3.1

Probabilidad de explotación0.27 %mayor que el 19 % 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 el servicio de aislamiento de claves de Windows Cryptography Next Generation (CNG) gestiona la memoria de forma incorrecta. Un atacante que explote con éxito esta vulnerabilidad podría ejecutar procesos en un contexto elevado. Para explotar esta vulnerabilidad, un atacante primero tendría que conseguir ejecución en el sistema de la víctima. Después, el atacante podría ejecutar una aplicación diseñada específicamente para escalar privilegios. La actualización de seguridad corrige la vulnerabilidad al rectificar la forma en que el servicio CNG Key Isolation de Windows gestiona la memoria.

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 %
Impacto principalT1059 Command and Scripting Interpreterexecution40 %

AV:L y UI:N con PR:L indican escalada de privilegios local sin interacción; el texto dice que permite ejecutar procesos en contexto elevado, sin nombrar un intérprete concreto.

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

Execution Prevention Threat Intelligence Program Restrict Web-Based Content Privileged Account Management Limit Software Installation Behavior Prevention on Endpoint

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:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Debilidad (CWE): CWE-415

Referencias

Referenciamsrc.microsoft.com/update-guide/vulnerability/CVE-2026-103571

JSON original (NVD)

Mostrar

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    }
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      "value": "An elevation of privilege vulnerability exists when the Windows Cryptography Next Generation (CNG) Key Isolation service improperly handles memory. An attacker who successfully exploited this vulnerability could run processes in an elevated context.\nTo exploit this vulnerability, an attacker would first have to gain execution on the victim system. An attacker could then run a specially crafted application to elevate privileges.\nThe security update addresses the vulnerability by correcting how the Windows CNG Key Isolation Service handles memory."
    }
  ],
  "lastModified": "2026-11-10T22:17:48.947",
  "sourceIdentifier": "secure@microsoft.com"
}