CVE-2026-66039

CVE-2026-66039

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.

CVE-2026-66039

A flaw was found in FFmpeg. A remote attacker could exploit a signed integer overflow vulnerability in the MACE6 audio decoder by providing a specially crafted CAF (Core Audio Format) file. This malicious file manipulates the bytes_per_packet value, leading to an undersized memory allocation and a heap out-of-bounds write. This vulnerability could allow an attacker to execute arbitrary code on the affected system.

CVE-2026-66039

FFmpeg through 8.1.2, fixed in commit aafb5c6, contains a signed integ ...

GHSA-84qc-6h9r-4w33

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.