CVE-2026-111156
CVE-2026-111156
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Weakness classification (CWE)
References
- hackmd.io/@haind-pwn/libtimidity-soundfont-generator-oper-oob-write (technical-description, exploit)
- github.com/sezero/libtimidity/blob/a52adf6aee2635e2a16797213a089c2180e67757/src… (technical-description)
- github.com/sezero/libtimidity (product)
- www.vulncheck.com/advisories/libtimidity-through-0.2.8-out-of-bounds-access-via… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-111156?
- CVE-2026-111156 is a medium-severity vulnerability, classified under Out-of-bounds Write. CVSS score: 6.1/10. Published 2026-10-15.
- How severe is CVE-2026-111156?
- Medium severity. CVSS v3 base score is 6.1 out of 10.