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CVE-2026-40031

Estado: AnalizadaAlta (8.5)—

MemProcFS before 5.17 contains multiple unsafe library-loading patterns that enable DLL and shared-library hijacking across six attack surfaces, including bare-name LoadLibraryU and dlopen calls without path qualification for vmmpyc, libMSCompression, and plugin DLLs. An attacker who places a malicious DLL or shared library in the working directory or manipulates LD_LIBRARY_PATH can achieve arbitrary code execution when MemProcFS loads.

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.

AV:L + UI:P (abrir archivo/ejecutar aplicación) → T1203 (ejecución en cliente). DLL hijacking mediante LD_LIBRARY_PATH y cargas sin ruta → T1574.007 (DLL side-loading). Resultado: ejecución de código arbitrario T1059.

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

Execution PreventionAuditRestrict Web-Based ContentRestrict File and Directory PermissionsPrivileged Account ManagementLimit Software Installation

Tecnologías afectadas (1)

Ufrisk — Memprocfs

CWE

Referencias

JSON original (NVD)

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    },
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    }
  ],
  "lastModified": "2026-07-24T21:10:00.143",
  "configurations": [
    {
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