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CVE-2026-40962

Estado: AnalizadaCrítica (9.8)—

FFmpeg before 8.1 has an integer overflow and resultant out-of-bounds write via CENC (Common Encryption) subsample data to libavformat/mov.c.

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.

Vector AV:N sin privilegios ni interacción: explotación remota de aplicación expuesta (T1190). Integer overflow en mov.c permite escritura fuera de límites, facilitando ejecución de código arbitrario (T1059) o escalada local de privilegios (T1068). CVSS crítico (C:H, I:H, A:H) respalda ambos impacto

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

Privileged Account ManagementExecution PreventionApplication Isolation and SandboxingExploit ProtectionUpdate SoftwareVulnerability Scanning

Tecnologías afectadas (1)

Ffmpeg — Ffmpeg

CWE

Referencias

JSON original (NVD)

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