Bug 2571268 - CVE-2026-125244 ffmpeg: VVC decoder out-of-bounds write via sh_entry_points() [epel-all]
Summary: CVE-2026-125244 ffmpeg: VVC decoder out-of-bounds write via sh_entry_points()...
Keywords:
Status: NEW
Alias: None
Product: Fedora EPEL
Classification: Fedora
Component: ffmpeg
Version: epel10
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
Assignee: Multimedia SIG
QA Contact:
URL:
Whiteboard: {"flaws": ["8cceae1f-bccc-4c25-8bb6-2...
Depends On:
Blocks: CVE-2026-125244
TreeView+ depends on / blocked
 
Reported: 2026-11-10 21:03 UTC by Guilherme de Almeida Suckevicz
Modified: 2026-11-10 21:03 UTC (History)
5 users (show)

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

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Description Guilherme de Almeida Suckevicz 2026-11-10 21:03:54 UTC 
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

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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