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Affected Component
Analysis
ffmpeg
Exploitable
Name
CVE-2026-70632
Description
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.
CWEs
Published Date
Updated Date
Workaround
-
Advisories
https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23898Issue Tracking
Analysis#
Vulnerability Ratings#
8.5
CVSSv4
7.8
CVSSv31
NaN
other