cvedb.io
CVE-2026-66039
HIGH · CVSS 8.8
EPSS exploitation probability: 0%
Published 2026-07-24T20:18:20.880 · Last modified 2026-07-24T20:18:20.880

Summary

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.

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.