Out-of-bounds Read in Sezero Libmikmod
CVE-2026-105838
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/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.
Affected products
Weakness classification (CWE)
References
- github.com/sezero/mikmod/commit/e7c6c9e88fbe3e8af4668a2e116bb8de341383f8 (patch)
- github.com/sezero/mikmod/blob/libmikmod-3.3.13/libmikmod/loaders/load_it.c (technical-description)
- github.com/sezero/mikmod/blob/libmikmod-3.3.14/libmikmod/NEWS (release-notes)
- github.com/sezero/mikmod (product)
- www.vulncheck.com/advisories/libmikmod-before-3.3.14-heap-out-of-bounds-read-vi… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-105838?
- CVE-2026-105838 is a medium-severity vulnerability in Sezero Libmikmod, classified under Out-of-bounds Read. CVSS score: 5.5/10. Published 2026-10-06.
- How severe is CVE-2026-105838?
- Medium severity. CVSS v3 base score is 5.5 out of 10.