Bug 2570888 (CVE-2026-125176) - CVE-2026-125176 ffmpeg: ffmpeg: Information disclosure via uninitialized memory read in Flash Screen Video decoder
Summary: CVE-2026-125176 ffmpeg: ffmpeg: Information disclosure via uninitialized memo...
Keywords:
Status: NEW
Alias: CVE-2026-125176
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 20:28 UTC by OSIDB Bzimport
Modified: 2026-11-11 00:13 UTC (History)
1 user (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-11-10 20:28:51 UTC 
FFmpeg through 9.0.2 contains an uninitialized memory read vulnerability in decode_hybrid() in libavcodec/flashsv.c that reads past decompressed data when decoding 15-bit color pixels. Attackers can supply a crafted Flash Screen Video 2 block whose inflated data ends mid-pixel to leak heap memory into decoded output frames.
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