7.0Hoch
CVE-2026-125251FFmpeg through 9.0.2 VVC Decoder Heap Out-of-Bounds Write via refs.c
Beschreibung
FFmpeg through 9.0.2 contains an integer overflow vulnerability in the VVC decoder alloc_frame() function in libavcodec/vvc/refs.c that undersizes the reference picture list allocation on 32-bit builds. Attackers can supply a crafted VVC (H.266) file with a very large number of NAL units per access unit to trigger heap out-of-bounds writes and corrupt memory.
Schwachstellentyp (CWE):
CWE-190
Daten: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Wiedergegeben wie in der Quelle, auf Englisch.
Betroffene Produkte und Versionen
Referenzen und Patches
- https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/25572 issue-tracking
- Patch Commit patch
- https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/vvc/refs.c#L148 technical-description
- https://github.com/FFmpeg/FFmpeg product
- VulnCheck Advisory: FFmpeg through 9.0.2 VVC Decoder Heap Out-of-Bounds Write via refs.c third-party-advisory