Bug 2570518 (CVE-2026-125095) - CVE-2026-125095 ffmpeg: ffmpeg: Information disclosure via uninitialized stack memory in C93 decoder
Summary: CVE-2026-125095 ffmpeg: ffmpeg: Information disclosure via uninitialized stac...
Keywords:
Status: NEW
Alias: CVE-2026-125095
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-11-10 20:04 UTC by OSIDB Bzimport
Modified: 2026-11-10 22:54 UTC (History)
1 user (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-11-10 20:04:17 UTC 
FFmpeg through 9.0.2 contains an uninitialized memory use vulnerability in the C93 video decoder in libavcodec/c93.c, where decode_frame() never checks how many color table bytes were copied. Attackers can supply a crafted truncated Interplay C93 file so draw_n_color() writes uninitialized stack bytes into decoded frames, disclosing stack memory contents.
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