What’s Vulnerable › Vulnerabilities

CVE-2026-111156: libTiMidity through 0.2.8 Out-of-Bounds Access via SoundFont Preset Header

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-15 · updated 2026-10-16
• Weakness: CWE-787

Description

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 through 0.2.8

References

• https://github.com/sezero/libtimidity
• https://github.com/sezero/libtimidity/blob/a52adf6aee2635e2a16797213a089c2180e67757/src/sndfont.c#L199-L224
• https://hackmd.io/@haind-pwn/libtimidity-soundfont-generator-oper-oob-write
• https://www.vulncheck.com/advisories/libtimidity-through-0.2.8-out-of-bounds-access-via-soundfont-preset-header

Get alerted when CVE-2026-111156 or the next vulnerability affects your stack