Vulnerability 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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/9d786e4b5e9b8482651928574de33772aee
- https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24087
- https://www.vulncheck.com/advisories/ffmpeg-stack-buffer-overflow-in-mpeg-ps-mux
FAQ
What is CVE-2026-75142?
CVE-2026-75142 is a vulnerability with a CVSS score of 7.8 (HIGH). 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, t...
How severe is CVE-2026-75142?
CVE-2026-75142 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-75142?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.