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.
CVE-2026-105838
MEDIUMPre-NVD 5.55.5—Trending — 3 sources updated this week
EchelonGraph scoreHIGH confidence
Score 5.5 from GitHub Security Advisory published 2026-10-06. A secondary CVSS source baseline 5.5; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: ghsa, secondary
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: —CVSS: 5.5Exploit: None knownExposed services: Not assessed
An upstream fix is merged but not yet released — mitigate (WAF / firewall / segmentation) until the release ships, then apply it.
- CVSS v3
- 5.5
- EG Score
- 5.5MEDIUMhigh confidence
- EG Risk
- 25EG Risk 25/100CISA SSVC
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity55% × 45%Exploitation0% × 40%Automatability0% × 15%CISA SSVC: Track at every mission impact level.Action: An upstream fix is merged but not yet in a tagged release. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines until it ships, then apply the release. - EPSS PROB
- —
- EPSS %ILE
- —
- KEV
- Not listed
CISA SSVCTrack at every mission impact level.
An upstream fix is merged but not yet in a tagged release. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines until it ships, then apply the release.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table
Published
October 6, 2026
Last Modified
October 6, 2026
Advisory Details (5)
Auto-updated Oct 6, 2026Upstream fix merged — awaiting tagged release. Sources: github_commit.
generic
libmikmod before 3.3.14 Heap Out-of-Bounds Read via IT Module Loader | Advisories | VulnCheck
https://www.vulncheck.com/advisories/libmikmod-before-3.3.14-heap-out-of-bounds-read-via-it-module-loadergeneric
GitHub - sezero/mikmod: Mikmod Sound System (mirror of git repo at https://sf.net/projects/mikmod/) · GitHub
https://github.com/sezero/mikmodgeneric
mikmod/libmikmod/NEWS at libmikmod-3.3.14 · sezero/mikmod · GitHub
https://github.com/sezero/mikmod/blob/libmikmod-3.3.14/libmikmod/NEWSgeneric
mikmod/libmikmod/loaders/load_it.c at libmikmod-3.3.13 · sezero/mikmod · GitHub
https://github.com/sezero/mikmod/blob/libmikmod-3.3.13/libmikmod/loaders/load_it.c#L198github_commit
commit e7c6c9e88fbe (sezero/mikmod)
Fix landed in sezero/mikmod commit e7c6c9e88fbe — awaiting tagged release
https://github.com/sezero/mikmod/commit/e7c6c9e88fbe3e8af4668a2e116bb8de341383f8Vendor Advisories for CVE-2026-105838(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 8× in last 7d / 8× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-10-07 20:18 UTCGHSA enrichment
- 2026-10-06 18:32 UTCEG score recompute
- 2026-10-06 18:32 UTCGHSA enrichment
- 2026-10-06 17:26 UTCEG score recompute
- 2026-10-06 17:26 UTCGHSA enrichment
- 2026-10-06 14:30 UTCEG score recompute
- 2026-10-06 13:40 UTCEG score recompute
- 2026-10-06 13:39 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Frequently asked(4)
What is CVE-2026-105838?
CVE-2026-105838 is a medium vulnerability published on October 6, 2026. libmikmod before 3.3.14 contains a heap out-of-bounds read vulnerability in the Impulse Tracker loader loadit.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 ITConvertTrack() to read past…
When was CVE-2026-105838 disclosed?
CVE-2026-105838 was first published on October 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
What is the CVSS score of CVE-2026-105838?
CVE-2026-105838 has a CVSS base score of 5.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-105838?
An upstream fix for CVE-2026-105838 has been merged but is not yet in a tagged release. Until it ships, restrict network exposure of the affected system or apply the vendor's mitigation, then update to the release that contains the fix. The vendor advisories EchelonGraph has for CVE-2026-105838 are linked in the Vendor Advisories panel on this page.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-105838
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