CVE-2026-105838: libmikmod before 3.3.14 Heap Out-of-Bounds Read via IT Module Loader

Severity: medium (CVSS 5.5 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: 2026-10-06 · updated 2026-10-06
Weakness: CWE-125

Description

libmikmod before 3.3.14 contains a heap out-of-bounds read vulnerability in the Impulse Tracker loader load_it.c that allows attackers to read adjacent heap memory via oversized patterns. Attackers can supply a crafted IT module with more than 200 pattern rows, causing IT_ConvertTrack() to read past the itpat buffer and crash applications.

Affected products

sezero libmikmod: before 3.3.14 — fixed in 3.3.14

How to fix

Upgrade to a fixed version: sezero libmikmod 3.3.14. Check the vendor advisory for mitigations.

References

https://github.com/sezero/mikmod
https://github.com/sezero/mikmod/blob/libmikmod-3.3.13/libmikmod/loaders/load_it.c#L198
https://github.com/sezero/mikmod/blob/libmikmod-3.3.14/libmikmod/NEWS
https://github.com/sezero/mikmod/commit/e7c6c9e88fbe3e8af4668a2e116bb8de341383f8
https://www.vulncheck.com/advisories/libmikmod-before-3.3.14-heap-out-of-bounds-read-via-it-module-loader

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