{"id":"CVE-2026-75142","revision":"e2b16b9111154597947cb0fcd5056249","records":[{"revision":"e2b16b9111154597947cb0fcd5056249","observedAt":"2026-10-27T12:09:21.929+00:00","statement":{"source":"cve-program","id":"CVE-2026-75142","aliases":[],"title":"FFmpeg Stack Buffer Overflow in MPEG-PS Muxer via mpegenc.c","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.","state":0,"publishedAt":"2026-08-19T16:24:57.738+00:00","modifiedAt":"2026-10-27T10:14:30.175+00:00","affected":[{"ecosystem":"Vendor product","name":"FFmpeg","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"FFmpeg\",\n                    \"product\": \"FFmpeg\",\n                    \"repo\": \"https://code.ffmpeg.org/FFmpeg/FFmpeg\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"0\",\n                            \"lessThan\": \"9d786e4b5e9b8482651928574de33772aeee7be1\",\n                            \"versionType\": \"git\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\",\n                    \"packageURL\": \"pkg:github/FFmpeg/FFmpeg\"\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":8.5,"severity":"HIGH"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"references":["https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24087","https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/9d786e4b5e9b8482651928574de33772aeee7be1","https://www.vulncheck.com/advisories/ffmpeg-stack-buffer-overflow-in-mpeg-ps-muxer-via-mpegenc-c"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-75142","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-75142","identifiers":["CVE-2026-75142"]},"retained":false,"historicalAffected":[]}],"coverage":[]}