High severity7.0NVD Advisory· Published Nov 9, 2026
CVE-2026-125181
CVE-2026-125181
Description
FFmpeg through 9.0.2 contains an out-of-bounds write vulnerability in flic_decode_frame_15_16BPP() in libavcodec/flicvideo.c that allows attackers to corrupt heap memory on big-endian builds. Attackers can supply a crafted 15/16 bpp FLIC/FLX file with an FLI_BRUN chunk whose non-terminating byte-swap loop writes packet-derived data past the frame buffer, crashing the process.
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Affected products
1Patches
Vulnerability mechanics
References
6- code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24901nvd
- github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/flicvideo.cnvd
- github.com/FFmpeg/FFmpeg/commit/c0d308a9a616f4abcc4e0a4d86f7de92ecdef9f6nvd
- github.com/FFmpeg/FFmpeg/commit/eb47d7bb6cf13042c6ab14e22fc0c0c3a6e51e12nvd
- github.com/FFmpeg/FFmpeg/commit/ee30fb98c0d4e97abbd5e371d2a3a926e92bec70nvd
- www.vulncheck.com/advisories/ffmpeg-through-9.0.2-flic-decoder-out-of-bounds-write-via-fli-brun-byte-swapnvd
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