CVE-2026-111270
libmodplug through 0.8.9.1 Heap Out-of-Bounds Write via CSoundFile::ReadDSM
CVSS Score
6.1
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-787 |
| Vendor | konstanty bialkowski |
| Product | libmodplug |
| Published | Oct 15, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
High
Affected Versions
Konstanty Bialkowski / libmodplug
0 ≤ 0.8.9.1
References
hackmd.io: https://hackmd.io/@haind-pwn/libmodplug-dsm-pattern-oob-write github.com: https://github.com/Konstanty/libmodplug/blob/d1b97ed0020bc620a059d3675d1854b40bd2608d/src/load_dsm.cpp#L130-L139 github.com: https://github.com/Konstanty/libmodplug vulncheck.com: https://www.vulncheck.com/advisories/libmodplug-through-0.8.9.1-heap-out-of-bounds-write-via-csoundfile-readdsm
Credits
HaiND from the Post and Telecommunication Institute of Technology