CVE-2017-11311

soundlib/Load_psm.cpp in OpenMPT through 1.26.12.00 and libopenmpt before 0.2.8461-beta26 has a heap buffer overflow with the potential for arbitrary code execution via a crafted PSM File that triggers use of the same sample slot for two samples.

CVE-2019-14381

libopenmpt before 0.4.3 allows a crash due to a NULL pointer dereference when doing a portamento from an OPL instrument to an empty instrument note map slot.