{"id":"JLSEC-2026-1185","summary":"FFmpeg through 8.1.2, fixed in commit aafb5c6, contains a signed integer overflow vulnerability...","details":"FFmpeg through 8.1.2, fixed in commit aafb5c6, contains a signed integer overflow vulnerability in the MACE6 audio decoder that allows attackers to corrupt heap memory by supplying a crafted CAF file with a malicious `bytes_per_packet` value. Attackers can craft a CAF file with oversized `bytes_per_packet` and `frames_per_packet` values in the desc chunk to trigger an integer overflow in `mace_decode_frame()` during output sample count computation, resulting in an undersized buffer allocation and heap out-of-bounds write that could enable code execution.","modified":"2026-08-08T23:15:05.745469755Z","published":"2026-08-07T13:27:45.313Z","upstream":["CVE-2026-66039","GHSA-84qc-6h9r-4w33","EUVD-2026-48741"],"database_specific":{"license":"CC-BY-4.0","sources":[{"published":"2026-07-24T20:18:20.880Z","url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-66039","html_url":"https://nvd.nist.gov/vuln/detail/CVE-2026-66039","database_specific":{"status":"Analyzed"},"id":"CVE-2026-66039","imported":"2026-08-08T05:24:16.247Z","modified":"2026-08-07T00:46:17.303Z"},{"id":"GHSA-84qc-6h9r-4w33","imported":"2026-08-08T05:24:21.632Z","modified":"2026-07-24T21:32:28Z","published":"2026-07-24T21:32:22Z","url":"https://api.github.com/advisories/GHSA-84qc-6h9r-4w33","html_url":"https://github.com/advisories/GHSA-84qc-6h9r-4w33"},{"html_url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-48741","id":"EUVD-2026-48741","imported":"2026-08-08T05:24:18.265Z","modified":"2026-07-29T03:55:37Z","published":"2026-07-24T19:42:42Z","url":"https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2026-48741"}]},"references":[{"type":"WEB","url":"https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/aafb5c655edc76a753275c383ebb139feb032718"},{"type":"WEB","url":"https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23631"},{"type":"WEB","url":"https://github.com/advisories/GHSA-84qc-6h9r-4w33"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-66039"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/ffmpeg-mace6-audio-decoder-heap-out-of-bounds-write-via-caf-file"}],"affected":[{"package":{"name":"FFMPEG_jll","ecosystem":"Julia","purl":"pkg:julia/FFMPEG_jll?uuid=b22a6f82-2f65-5046-a5b2-351ab43fb4e5"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"9.0.0+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-1185.json"}},{"package":{"name":"FFMPEG_nogpl_jll","ecosystem":"Julia","purl":"pkg:julia/FFMPEG_nogpl_jll?uuid=a6892c6b-5768-548c-b024-ff8dabf482c5"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"9.0.0+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-1185.json"}},{"package":{"name":"FFplay_jll","ecosystem":"Julia","purl":"pkg:julia/FFplay_jll?uuid=c4dce911-e170-5107-8314-c7bdc6785395"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"9.0.0+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-1185.json"}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","source":"NVD"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","source":"CNA"}]}