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CVE-2013-3893

Estado: AnalizadaAlta (8.8)⚠ Explotación activa

Use-after-free vulnerability in the SetMouseCapture implementation in mshtml.dll in Microsoft Internet Explorer 6 through 11 allows remote attackers to execute arbitrary code via crafted JavaScript strings, as demonstrated by use of an ms-help: URL that triggers loading of hxds.dll.

CVSS

Probabilidad de explotación (EPSS)

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

🎯 Técnicas ATT&CK

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

Use-after-free en mshtml.dll explotado por JavaScript malicioso en navegador remoto, requiere interacción (UI:R). Permite ejecución arbitraria de código en el contexto del cliente.

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 ContentExecution PreventionBehavior Prevention on EndpointDisable or Remove Feature or ProgramApplication Isolation and SandboxingExploit Protection

Tecnologías afectadas (1)

Microsoft — Internet Explorer

CWE

Referencias

JSON original (NVD)

Mostrar
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    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de uso después de liberación en la implementación de SetMouseCapture en mshtml.dll de Microsoft Internet Explorer 6 a 11 permite a atacantes remotos ejecutar código arbitrario a través de cadenas JavaScript manipuladas, como se demuestra por el uso de un ms-help: URL que dispara la carga de hxds.dll."
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  "cisaActionDue": "2025-09-02",
  "cisaExploitAdd": "2025-08-12",
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  "cisaVulnerabilityName": "Microsoft Internet Explorer Resource Management Errors Vulnerability"
}