Bug 2573377 - CVE-2026-125262 ffmpeg: heap buffer overflow via LCEVC enhancement decoding [fedora-all]
Summary: CVE-2026-125262 ffmpeg: heap buffer overflow via LCEVC enhancement decoding [...
Keywords:
Status: NEW
Alias: None
Product: Fedora
Classification: Fedora
Component: ffmpeg
Version: rawhide
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
Assignee: Multimedia SIG
QA Contact:
URL:
Whiteboard: {"flaws": ["ccba9b7b-27cb-4aa7-9602-7...
Depends On:
Blocks: CVE-2026-125262
TreeView+ depends on / blocked
 
Reported: 2026-11-13 17:44 UTC by Guilherme de Almeida Suckevicz
Modified: 2026-11-13 17:44 UTC (History)
5 users (show)

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


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Description Guilherme de Almeida Suckevicz 2026-11-13 17:44:20 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 through 9.0.2 contains a heap buffer overflow vulnerability in libavcodec/lcevcdec.c because LCEVC output picture dimensions are not validated against the allocated frame. Attackers can embed crafted LCEVC enhancement data with differing global configurations in H.264 or HEVC streams to corrupt heap memory in decoding applications.


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