Bug 2570798 (CVE-2026-125099) - CVE-2026-125099 ffmpeg: ffmpeg: Information disclosure via crafted GEM image
Summary: CVE-2026-125099 ffmpeg: ffmpeg: Information disclosure via crafted GEM image
Keywords:
Status: NEW
Alias: CVE-2026-125099
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 20:23 UTC by OSIDB Bzimport
Modified: 2026-11-10 23:55 UTC (History)
1 user (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

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Description OSIDB Bzimport 2026-11-10 20:23:02 UTC 
FFmpeg through 9.0.2 contains an uninitialized memory disclosure vulnerability in the GEM raster image decoder in libavcodec/gemdec.c that exposes uninitialized row-buffer bytes. Attackers can supply a crafted GEM .img image using SKIP or pattern opcodes to copy uninitialized heap memory into decoded frames, disclosing heap contents.
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