CVE-2021-30665

Estado: AnalizadaAlta (8.8)⚠ Explotación activa

Se abordó un problema de corrupción de la memoria con una administración de estado mejorada. Este problema es corregido en watchOS versión 7.4.1, iOS versión 14.5.1 y iPadOS versión 14.5.1, tvOS versión 14.6, iOS versión 12.5.3, macOS Big Sur versión 11.3.1. El procesamiento de contenido web maliciosamente diseñado puede conllevar a una ejecución de código arbitrario. Apple está al tanto de un informe de que este problema puede haber sido explotado activamente

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: 3.71%
Percentil entre todas las CVEs puntuadas: 89
Fecha de la puntuación: 8/10/2026

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: 17/11/2021
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.

ExplotaciónT1203 Exploitation for Client Executionexecution85 %
Impacto principalT1059 Command and Scripting Interpreterexecution80 %

Vulnerabilidad de corrupción de memoria (CWE-787) en procesamiento de contenido web malicioso que requiere interacción del usuario (UI:R). Permite ejecución arbitraria de código en navegador/cliente (T1203), explotada activamente en ransomware.

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

Restrict Web-Based Content Privileged Account Management Limit Software Installation Execution Prevention Behavior Prevention on Endpoint Disable or Remove Feature or Program

Tecnologías afectadas (5)

Apple — Ipados Apple — Iphone OS Apple — Macos Apple — Tvos Apple — Watchos

CWE

CWE-787
CWE-787

Referencias

JSON original (NVD)

Mostrar

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