CVE-2026-125221
5.5 MEDIUMpublic exploit availablePublished 2026-11-09 · Updated 2026-11-10
AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.
NVD description
FFmpeg through 9.0.2 contains an uncontrolled recursion vulnerability in score_header() in libavcodec/flac_parser.c that allows attackers to exhaust the thread stack via crafted FLAC input. Attackers can supply a FLAC stream packed with many small valid-looking frame headers, forcing deep recursion that crashes the process during demuxing or parsing.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weaknesses
CWE-674
Public exploit & PoC references
All references
- https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/25569
- https://github.com/FFmpeg/FFmpeg
- https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/flac_parser.c#L603
- https://github.com/FFmpeg/FFmpeg/commit/972fe1ccd326538fe9a6b5d5094b7880b5443429
- https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-uncontrolled-recursion-in-flac-parser-score-header
Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.
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