Bug 2569579 (CVE-2026-125235) - CVE-2026-125235 ffmpeg: ffmpeg: Heap-based buffer overflow via mid-stream resolution change in Intel QSV encoder
Summary: CVE-2026-125235 ffmpeg: ffmpeg: Heap-based buffer overflow via mid-stream res...
Keywords:
Status: NEW
Alias: CVE-2026-125235
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-11-10 13:06 UTC by OSIDB Bzimport
Modified: 2026-11-10 13:39 UTC (History)
1 user (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-11-10 13:06:51 UTC 
FFmpeg through 9.0.2 contains a heap overflow vulnerability in libavcodec/qsvenc.c that allows attackers to corrupt memory by reusing an undersized pooled QSVFrame buffer when input dimensions increase. Attackers can supply crafted input whose resolution grows mid-stream, transcoded with Intel Quick Sync encoders without rescaling, to crash the application or corrupt heap memory.
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