---
id: CVE-2026-105839
title: >-
  libmikmod before 3.3.14 contains an integer overflow in the Oktalyzer loader
  OKT_doPBOD() that allows attackers to cause heap buffer overflow via crafted
  track counts
summary: >-
  libmikmod before 3.3.14 contains an integer overflow in the Oktalyzer loader
  OKT_doPBOD() that allows attackers to cause heap buffer overflow via crafted
  track counts. Attackers can supply an OKT module whose SLEN chunk wraps the
  16-bit …
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'
cwe:
  - CWE-190
vendor: sezero
product: libmikmod
affected:
  - libmikmod < 3.3.14
published: '2026-10-06'
updated: '2026-10-06'
sourceUpdated: '2026-10-06T15:25:00.650'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-105839'
references:
  - url: 'https://github.com/sezero/mikmod'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/sezero/mikmod/blob/libmikmod-3.3.13/libmikmod/loaders/load_okt.c#L286
    label: disclosure@vulncheck.com
  - url: 'https://github.com/sezero/mikmod/blob/libmikmod-3.3.14/libmikmod/NEWS'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/sezero/mikmod/commit/097b69281fad6ba38a553569e6f55dbfdd71dc2a
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/libmikmod-before-3.3.14-heap-buffer-overflow-via-okt-loader-okt-dopbod
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-06T14:00:19.150Z'
---

## Overview

libmikmod before 3.3.14 contains an integer overflow in the Oktalyzer loader OKT_doPBOD() that allows attackers to cause heap buffer overflow via crafted track counts. Attackers can supply an OKT module whose SLEN chunk wraps the 16-bit numtrk value, causing PBOD writes past allocated track pointers for crashes or code execution.

## Remediation

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