CVE-2026-111270

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.

CVSS v3 6.1 MEDIUM

6.1^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 4.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/Konstanty/libmodplug
https://github.com/Konstanty/libmodplug/blob/d1b97ed0020bc620a059d3675d1854b40bd2608d/src/load_dsm.cpp#L130-L139
https://hackmd.io/@haind-pwn/libmodplug-dsm-pattern-oob-write
https://www.vulncheck.com/advisories/libmodplug-through-0.8.9.1-heap-out-of-bounds-write-via-csoundfile-readdsm
https://hackmd.io/@haind-pwn/cve-2026-111270-111271-libmodplug-dsm-pattern-oob-write

Configurations

No configuration.

History

21 Oct 2026, 02:17

Type	Values Removed	Values Added
References		() https://hackmd.io/@haind-pwn/cve-2026-111270-111271-libmodplug-dsm-pattern-oob-write -

15 Oct 2026, 22:19

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-15 22:19

Updated : 2026-10-21 02:17

NVD link : CVE-2026-111270

Mitre link : CVE-2026-111270

CVE.ORG link : CVE-2026-111270

JSON object : View

Products Affected

No product.

CWE

CWE-787

Out-of-bounds Write

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