{"id":"CVE-2026-125242","title":"FFmpeg through 9.0.2 Memory Leak via VDPAU Hwaccel Bitstream Buffer Table","summary":"FFmpeg through 9.0.2 contains a memory leak vulnerability in libavcodec/vdpau.c that allows attackers to exhaust heap memory by aborting pictures before end_frame. Attackers can supply crafted H.264 streams with malformed NAL units that …","severity":"medium","cvss":4.7,"cvssVector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H","cvssSource":"cna","cwe":["CWE-401"],"vendor":"FFmpeg","product":"FFmpeg","affected":["FFmpeg <= 9.0.2"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-09T20:56:23.321151Z"},"published":"2026-11-09","updated":"2026-11-09","sourceUpdated":"2026-11-09T20:56:49.265Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-125242","references":[{"url":"https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/25231"},{"url":"https://github.com/FFmpeg/FFmpeg/commit/2c6cd8098844f2367f8ba0a3a483e405c8f76449","label":"Patch Commit"},{"url":"https://github.com/FFmpeg/FFmpeg/commit/eac2bedcf6245552b39eed32b334851bc6a1b8fa","label":"Patch Commit"},{"url":"https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/vdpau.c#L378"},{"url":"https://github.com/FFmpeg/FFmpeg"},{"url":"https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-memory-leak-via-vdpau-hwaccel-bitstream-buffer-table","label":"VulnCheck Advisory: FFmpeg through 9.0.2 Memory Leak via VDPAU Hwaccel Bitstream Buffer Table"}],"tags":["cve.org"],"ingestedAt":"2026-11-09T19:18:02.579Z","slug":"CVE-2026-125242","body":"## Overview\n\nFFmpeg through 9.0.2 contains a memory leak vulnerability in libavcodec/vdpau.c that allows attackers to exhaust heap memory by aborting pictures before end_frame. Attackers can supply crafted H.264 streams with malformed NAL units that repeatedly abandon pictures, leaking the bitstream_buffers table continuously and causing denial of service.\n\n## Affected\n\n- `FFmpeg <= 9.0.2`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":26,"depthScoreParts":{"impact":25.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}