CVE-2025-43209

Estado: ModificadaCrítica (9.8)—

An out-of-bounds access issue was addressed with improved bounds checking. This issue is fixed in iOS 18.6 and iPadOS 18.6, iPadOS 17.7.9, macOS Sequoia 15.6, macOS Sonoma 14.7.7, macOS Ventura 13.7.7, tvOS 18.6, visionOS 2.6, watchOS 11.6. Processing maliciously crafted web content may lead to an unexpected Safari crash.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Puntuación base: 9.8

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.90%
Percentil entre todas las CVEs puntuadas: 58
Fecha de la puntuación: 6/10/2026

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

ExplotaciónT1190 Exploit Public-Facing Applicationinitial access85 %

AV:N/AC:L/PR:N indica explotación remota sin privilegios (T1190). Out-of-bounds en Safari sugiere ejecución de código; el crash mencionado es típico de CWE-787 que puede derivar en RCE.

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

Vulnerability Scanning Privileged Account Management Network Segmentation Limit Access to Resource Over Network Filter Network Traffic Application Isolation and Sandboxing

Tecnologías afectadas (6)

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

CWE

CWE-787

Referencias

JSON original (NVD)

Mostrar

{
  "id": "CVE-2025-43209",
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              "automatable": "yes"
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          "version": "2.0.3",
          "timestamp": "2025-07-30T13:25:26.617061Z"
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      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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    },
    {
      "lang": "es",
      "value": "Se solucionó un problema de acceso fuera de los límites mejorando la comprobación de los límites. Este problema está corregido en macOS Sequoia 15.6, iPadOS 17.7.9, iOS 18.6 y iPadOS 18.6, tvOS 18.6, macOS Sonoma 14.7.7, watchOS 11.6, visionOS 2.6 y macOS Ventura 13.7.7. El procesamiento de contenido web manipulado con fines malintencionados puede provocar un bloqueo inesperado de Safari."
    }
  ],
  "lastModified": "2026-06-17T09:23:29.833",
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