CVE-2021-3246: Debian Linux

High severity, CVSS 8.8. EPSS: 3.2% chance of exploitation in the next 30 days.

A heap buffer overflow vulnerability in msadpcm_decode_block of libsndfile 1.0.30 allows attackers to execute arbitrary code via a crafted WAV file.

Affected products

• Debian Debian Linux: version 9.0 only; version 10.0 only
• Fedoraproject Fedora: version 33 only; version 34 only
• Libsndfile Project Libsndfile: version 1.0.30 only

Published 2021-07-20. Last modified 2026-06-17.