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CVE-2025-4525

Estado: AnalizadaAlta (7.3)—

A vulnerability, which was classified as critical, has been found in Discord 1.0.9188 on Windows. Affected by this issue is some unknown functionality in the library WINSTA.dll. The manipulation leads to uncontrolled search path. The attack needs to be approached locally. The complexity of an attack is rather high. The exploitation is known to be difficult. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

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).

🎯 Técnicas ATT&CK

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

Vulnerabilidad local (AV:L) sin interacción (UI:N) con PR:L en WINSTA.dll que resulta en escalada de privilegios mediante DLL hijacking (CWE-426/427: búsqueda descontrolada de ruta).

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

Tecnologías afectadas (1)

CWE

Referencias

JSON original (NVD)

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          "exploitMaturity": "NOT_DEFINED",
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          "modifiedSubIntegrityImpact": "NOT_DEFINED",
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      "description": [
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          "value": "CWE-426"
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    }
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    },
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      "value": "Se ha detectado una vulnerabilidad clasificada como crítica en Discord 1.0.9188 para Windows. Este problema afecta a una funcionalidad desconocida en la librería WINSTA.dll. La manipulación genera una ruta de búsqueda incontrolada. El ataque debe abordarse localmente. Es un ataque de complejidad bastante alta. Parece difícil de explotar. Se ha hecho público el exploit y puede que sea utilizado. Se contactó al proveedor con antelación sobre esta divulgación, pero no respondió."
    }
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  "lastModified": "2026-06-17T09:33:26.740",
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