CVE-2021-30883

Estado: AnalizadaAlta (7.8)⚠ Explotación activa

Se abordó un problema de corrupción de memoria con un manejo de memoria mejorada. Este problema se corrigió en iOS versión 15.0.2 y iPadOS versión 15.0.2, macOS Monterey versión 12.0.1, iOS versión 14.8.1 y iPadOS versión 14.8.1, tvOS versión 15.1, watchOS versión 8.1, macOS Big Sur versión 11.6.1. Una aplicación puede ser capaz de ejecutar código arbitrario con privilegios del kernel. Apple es consciente de un informe de que este problema puede haber sido explotado activamente

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Puntuación base: 7.8

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 15%
Percentil entre todas las CVEs puntuadas: 97
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: 23/5/2022
Plazo de remediación: 13/6/2022
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.

ExplotaciónT1203 Exploitation for Client Executionexecution90 %
Impacto secundarioT1059 Command and Scripting Interpreterexecution80 %

Corrupción de memoria (CWE-787) en aplicaciones iOS/macOS explotable localmente (AV:L, PR:N, UI:R) permite escalada de privilegios y ejecución de código arbitrario con privilegios del kernel, confirmado en explotación activa.

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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