Bug 2569541 (CVE-2026-125244) - CVE-2026-125244 ffmpeg: VVC decoder out-of-bounds write via sh_entry_points()
Summary: CVE-2026-125244 ffmpeg: VVC decoder out-of-bounds write via sh_entry_points()
Keywords:
Status: NEW
Alias: CVE-2026-125244
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2571268 2571269
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-11-10 13:01 UTC by OSIDB Bzimport
Modified: 2026-11-10 21:03 UTC (History)
1 user (show)

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

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Description OSIDB Bzimport 2026-11-10 13:01:40 UTC 
FFmpeg before 8.1.3 and 9.x before 9.0.2 contains an out-of-bounds write vulnerability in the VVC decoder's sh_entry_points() function in libavcodec/vvc/ps.c. Attackers can supply a crafted VVC (H.266) bitstream whose SPS/PPS tile and WPP layout produces excess entry points, overflowing entry_point_start_ctu and corrupting decoder memory.
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