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{"acknowledgement": "Upstream acknowledges Joshua Rogers (AISLE Research) as the original reporter.", "bugzilla": {"description": "ffmpeg: FFmpeg: Stack Buffer Overflow in MPEG-PS Muxer", "id": "2519759", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2519759"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.8", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-120", "details": ["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.", "A flaw was found in FFmpeg. A stack buffer overflow exists in the MPEG-PS muxer. A local attacker or a user processing a specially crafted file with an excessive number of streams could trigger this flaw, leading to a buffer overflow. This could potentially result in denial of service or arbitrary code execution."], "mitigation": {"lang": "en:us", "value": "No mitigation is currently available for this flaw."}, "name": "CVE-2026-75142", "package_state": [{"cpe": "cpe:/a:redhat:enterprise_linux_ai:3", "fix_state": "Fix deferred", "package_name": "ffmpeg", "product_name": "Red Hat Enterprise Linux AI (RHEL AI) 3"}, {"cpe": "cpe:/a:redhat:openshift_ai", "fix_state": "Fix deferred", "package_name": "rhoai/odh-vllm-gaudi-rhel9", "product_name": "Red Hat OpenShift AI (RHOAI)"}], "public_date": "2026-08-19T16:24:57Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-75142\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-75142\nhttps://code.ffmpeg.org/FFmpeg/FFmpeg/commit/9d786e4b5e9b8482651928574de33772aeee7be1\nhttps://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24087\nhttps://www.vulncheck.com/advisories/ffmpeg-stack-buffer-overflow-in-mpeg-ps-muxer-via-mpegenc-c"], "statement": "The ffmpeg package is not shipped in base Red Hat Enterprise Linux. It is available through EPEL, Red Hat Enterprise Linux AI, and as a bundled dependency in Red Hat OpenShift AI container images. The vulnerable code resides in the MPEG-PS muxer (libavformat/mpegenc.c), which is compiled and shipped in all FFmpeg builds across these products. This is a stack buffer overflow triggered by input with an excessive number of streams.", "threat_severity": "Important"}