---
id: CVE-2026-111156
title: >-
  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
summary: >-
  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 …
severity: medium
cvss: 6.1
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H'
cwe:
  - CWE-787
vendor: sezero
product: libtimidity
affected:
  - libtimidity >= 0.2.8 <= 0.2.8
published: '2026-10-15'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T19:17:30.527'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-111156'
references:
  - url: 'https://github.com/sezero/libtimidity'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/sezero/libtimidity/blob/a52adf6aee2635e2a16797213a089c2180e67757/src/sndfont.c#L199-L224
    label: disclosure@vulncheck.com
  - url: >-
      https://hackmd.io/@haind-pwn/libtimidity-soundfont-generator-oper-oob-write
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/libtimidity-through-0.2.8-out-of-bounds-access-via-soundfont-preset-header
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
  - exploit-available
ingestedAt: '2026-10-15T19:25:46.417Z'
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-15T19:33:39.933334Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.