Bug 2569546 (CVE-2026-125190) - CVE-2026-125190 ffmpeg: ffmpeg: Information disclosure via uninitialized stack memory in MVC2 decoder
Summary: CVE-2026-125190 ffmpeg: ffmpeg: Information disclosure via uninitialized stac...
Keywords:
Status: NEW
Alias: CVE-2026-125190
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-11-10 13:02 UTC by OSIDB Bzimport
Modified: 2026-11-10 13:17 UTC (History)
1 user (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2026-11-10 13:02:11 UTC 
FFmpeg through 9.0.2 contains an information disclosure vulnerability in decode_mvc2() in libavcodec/mvcdec.c that leaks uninitialized stack memory through unchecked palette indices. Attackers can supply a crafted MVC2 stream declaring few colors but referencing higher palette indices, copying process stack contents into decoded RGB frames.
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