{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-75142 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-75142 is a high-severity memory corruption vulnerability in FFmpeg, published on 19 Aug 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-75142 and fix it if it is affected.\n\nWhat it is: CVE-2026-75142 is a high-severity memory corruption vulnerability in FFmpeg, published on 19 Aug 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-75142 in the wild and no public exploit code.\n\nAffected product: FFmpeg. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-75142/ (Markdown: https://insights.sbomify.com/CVE-2026-75142/index.md)","id":"CVE-2026-75142","markdown":"https://insights.sbomify.com/CVE-2026-75142/index.md","name":"CVE-2026-75142","record":{"aliases":["DEBIAN-CVE-2026-75142","ECHO-8340-2df2-4096","GHSA-5vj8-jgqj-77h6","UBUNTU-CVE-2026-75142"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["code_execution","denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Multimedia processing library","requires_auth":"none","summary":"A stack buffer overflow in FFmpeg's MPEG-PS muxer allows attackers to execute arbitrary code or cause denial of service via crafted media files.","user_interaction":"required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":8.5,"severity":"high","source":"cna","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","version":"4.0"},"cwes":[{"id":"CWE-121","name":"Stack-based Buffer Overflow"}],"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.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"FFmpeg Stack Buffer Overflow in MPEG-PS Muxer via mpegenc.c","id":"CVE-2026-75142","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"FFmpeg Heap Buffer Overflow via RIST Protocol Reader","id":"CVE-2026-75143"},"packages":[],"prev":{"headline":"FFmpeg Heap Buffer Overflow in hvcC Box Writer via HEVC Muxing","id":"CVE-2026-75141"},"products":["FFmpeg"],"published":"2026-08-19","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-27","vendors":["FFmpeg"]},"summary":"A stack buffer overflow in FFmpeg's MPEG-PS muxer allows attackers to execute arbitrary code or cause denial of service via crafted media files.","url":"https://insights.sbomify.com/CVE-2026-75142/"}