CVE-2026-111270mediumCWE-787

CVE-2026-111270: medium-severity vulnerability in Konstanty Bialkowski libmodplug

libmodplug through 0.8.9.1 Heap Out-of-Bounds Write via CSoundFile::ReadDSM

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33Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 6.9epss 0.2%
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:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
Affected products
Konstanty Bialkowski · libmodplug
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