Fiche vulnérabilité
CVE-2026-66039 : faille élevée ffmpeg ffmpeg (CVSS 7.8)
Description
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.
En bref
- Sévérité
- Élevée (CVSS 7.8)
- Vecteur CVSS
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Exploitation active
- Non signalée par la CISA
- Publication
- 24 juil. 2026
- Dernière mise à jour
- 7 août 2026
Produits concernés
- ffmpeg ffmpeg