libmodplug through 0.8.9.1 contains a heap-based out-of-bounds write in CSoundFile::ReadDSM() in src/load_dsm.cpp because nPat is never checked against MAX_PATTERNS. Attackers can supply a crafted DSM file with over 240 PATT chunks or a wrapping patt_len value to corrupt heap memory and crash the consuming process.

Attack Vector Local

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.0013.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Konstanty Bialkowski libmodplug unaffected
Version Status Constraints
0 affected ≤ 0.8.9.1

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Project Subscriptions

Vendors Products
Konstanty Bialkowski Subscribe
Libmodplug Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/Konstanty/libmodplug cve-icon cve-icon
https://github.com/Konstanty/libmodplug/blob/d1b97ed0020bc620a059d3675d1854b40bd2608d/src/load_dsm.cpp#L130-L139 cve-icon cve-icon
https://hackmd.io/@haind-pwn/libmodplug-dsm-pattern-oob-write cve-icon cve-icon
https://www.vulncheck.com/advisories/libmodplug-through-0.8.9.1-heap-out-of-bounds-write-via-csoundfile-readdsm cve-icon cve-icon
History

Thu, 15 Oct 2026 22:00:00 +0000

Type Values Removed Values Added
Description libmodplug through 0.8.9.1 contains a heap-based out-of-bounds write in CSoundFile::ReadDSM() in src/load_dsm.cpp because nPat is never checked against MAX_PATTERNS. Attackers can supply a crafted DSM file with over 240 PATT chunks or a wrapping patt_len value to corrupt heap memory and crash the consuming process.
Title libmodplug through 0.8.9.1 Heap Out-of-Bounds Write via CSoundFile::ReadDSM
First Time appeared Konstanty Bialkowski
Konstanty Bialkowski libmodplug
Weaknesses CWE-787
CPEs cpe:2.3:a:konstanty_bialkowski:libmodplug:*:*:*:*:*:*:*:*
Vendors & Products Konstanty Bialkowski
Konstanty Bialkowski libmodplug
References
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-15T21:43:17.665Z

Reserved: 2026-10-15T19:33:19.371Z

Link: CVE-2026-111270

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-15T22:19:27.820

Modified: 2026-10-15T22:19:27.820

Link: CVE-2026-111270

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-16T08:00:13Z

Weaknesses