CVE-2021-30900

Estado: AnalizadaAlta (7.8)⚠ Explotación activa

Se abordó un problema de escritura fuera de límites con una comprobación de límites mejorada. Este problema se corrigió en iOS versión 14.8.1 y iPadOS versión 14.8.1, iOS versión 15.1 y iPadOS versión 15.1. Una aplicación maliciosa puede ser capaz de ejecutar código arbitrario con privilegios del kernel

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: 5.20%
Percentil entre todas las CVEs puntuadas: 92
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: 30/3/2023
Plazo de remediación: 20/4/2023
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 Executionexecution95 %

Explotación corregida por reglas (vector CVSS): era T1068

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

Application Isolation and Sandboxing Exploit Protection Update Software

Tecnologías afectadas (3)

Apple — Ipados Apple — Iphone OS Apple — Macos

CWE

CWE-787
CWE-787

Referencias

JSON original (NVD)

Mostrar

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          "options": [
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      "value": "An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 14.8.1 and iPadOS 14.8.1, iOS 15.1 and iPadOS 15.1. A malicious application may be able to execute arbitrary code with kernel privileges."
    },
    {
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      "value": "Se abordó un problema de escritura fuera de límites con una comprobación de límites mejorada. Este problema se corrigió en iOS versión 14.8.1 y iPadOS versión 14.8.1, iOS versión 15.1 y iPadOS versión 15.1. Una aplicación maliciosa puede ser capaz de ejecutar código arbitrario con privilegios del kernel"
    }
  ],
  "lastModified": "2026-06-17T03:51:06.180",
  "cisaActionDue": "2023-04-20",
  "cisaExploitAdd": "2023-03-30",
  "configurations": [
    {
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  "cisaRequiredAction": "Apply updates per vendor instructions.",
  "cisaVulnerabilityName": "Apple iOS, iPadOS, and macOS Out-of-Bounds Write Vulnerability"
}