CVE Watch6 ago 2026

CVE-2026-70632

FFmpeg versions from 4.4 up to, but not including, 9.0 contain an out-of-bounds heap write vulnerability in the native GoPro CineForm HD (CF

CVSS

7.8

Alto

EPSS

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KEV

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Exploit Today

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0-100

Publicado: 6 ago 2026 · Última mod.: 6 ago 2026 · CWE-787

EPSS · 30d

Sin historial EPSS suficiente todavía.

Descripción técnica

FFmpeg versions from 4.4 up to, but not including, 9.0 contain an out-of-bounds heap write vulnerability in the native GoPro CineForm HD (CFHD) decoder that allows remote attackers to corrupt heap memory by supplying a crafted AVI file during stream probing. The cfhd_decode() function fails to enforce the non-Bayer logical output-width invariant in the transform-type-2 reconstruction path, causing horiz_filter_clip() to write oversized 16-bit sample rows far beyond the allocated output frame buffer, which can be escalated to arbitrary code execution via overwrite of a live cleanup callback pointer.

Referencias oficiales

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