---
id: CVE-2026-111166
title: >-
  libmikmod through 3.3.15 contains a heap out-of-bounds read vulnerability in
  the IMF_Load() loader that allows attackers to read beyond allocated memory by
  supplying a crafted IMF module
summary: >-
  libmikmod through 3.3.15 contains a heap out-of-bounds read vulnerability in
  the IMF_Load() loader that allows attackers to read beyond allocated memory by
  supplying a crafted IMF module. Attackers can enable the linear-period header
  fla…
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'
cwe:
  - CWE-125
vendor: sezero
product: libmikmod
affected:
  - libmikmod <= 3.3.15
published: '2026-10-15'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T18:25:45.343'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-111166'
references:
  - url: 'https://github.com/sezero/mikmod'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/sezero/mikmod/blob/6e658155f7e6b394a288dac796ba572634553fad/libmikmod/loaders/load_imf.c#L702-L712
    label: disclosure@vulncheck.com
  - url: 'https://hackmd.io/@haind-pwn/libmikmod-mtm-imf-loader-oob-read'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/libmikmod-through-3.3.15-heap-out-of-bounds-read-via-imf-load
    label: disclosure@vulncheck.com
  - url: 'https://hackmd.io/@haind-pwn/libmikmod-mtm-imf-loader-oob-read'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
epss: 0.00195
epssPercentile: 0.09121
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-15T19:31:26.816035Z'
ingestedAt: '2026-10-15T19:25:46.424Z'
---

## Overview

libmikmod through 3.3.15 contains a heap out-of-bounds read vulnerability in the IMF_Load() loader that allows attackers to read beyond allocated memory by supplying a crafted IMF module. Attackers can enable the linear-period header flag and map notes to out-of-range samples, causing noteindex indexing far past the heap allocation and crashing applications that load the file.

## Remediation

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