Bug 2571179 (CVE-2026-125267) - CVE-2026-125267 ffmpeg: FFmpeg: arbitrary code execution via crafted APAC file
Summary: CVE-2026-125267 ffmpeg: FFmpeg: arbitrary code execution via crafted APAC file
Keywords:
Status: NEW
Alias: CVE-2026-125267
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:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-11-10 20:44 UTC by OSIDB Bzimport
Modified: 2026-11-11 01:26 UTC (History)
1 user (show)

Fixed In Version:
Clone Of:
Environment:
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Embargoed:

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Description OSIDB Bzimport 2026-11-10 20:44:19 UTC 
FFmpeg before 8.1.3 and 9.x before 9.0.2 contains a heap out-of-bounds write vulnerability in the APAC decoder in libavcodec/apac.c caused by an unreset bitstream index. Attackers can supply a crafted APAC file whose growing bitstream_index triggers an integer overflow, bypassing the reallocation check so memcpy() corrupts heap memory or crashes the application.
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