Is CVE-2026-111270 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-111270?

CVE-2026-111270 has a CVSS v3 severity of MEDIUM (6.1).

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CVE-2026-111270

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.