High severity7.8NVD Advisory· Published Aug 19, 2026

CVE-2026-75142

Description

FFmpeg before commit 9d786e4 contains a stack buffer overflow in the MPEG-PS muxer (libavformat/mpegenc.c). When muxing input with more streams than the muxer's fixed-size stack buffer accommodates, the buffer is overflowed. A crafted input with an excessive number of streams triggers the overflow during MPEG-PS muxing.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

FFmpeg/Ffmpegllm-fuzzy
Range: <commit 9d786e4

Patches

Vulnerability mechanics

References

code.ffmpeg.org/FFmpeg/FFmpeg/commit/9d786e4b5e9b8482651928574de33772aeee7be1nvd
code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24087nvd
www.vulncheck.com/advisories/ffmpeg-stack-buffer-overflow-in-mpeg-ps-muxer-via-mpegenc-cnvd

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cvss	0.507
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000