CVE-2026-111156: Sezero Libtimidity

Medium severity, CVSS 6.1. EPSS: 0.1% chance of exploitation in the next 30 days.

libTiMidity through 0.2.8 contains an out-of-bounds access vulnerability in init_soundfont() in src/sndfont.c that allows attackers to corrupt memory by supplying unvalidated SF2 preset header bank and preset values. Attackers can craft a .sf2 file whose bank or preset indexes past the 128-entry tonebank or drumset arrays, causing heap memory reads, writes, and application crashes.

Affected products

• Sezero Libtimidity: from 0.2.8, up to and including 0.2.8

Published 2026-10-15. Last modified 2026-10-16.