Buffer overflow in the license management function of YOKOGAWA products (iDefine for ProSafe-RS R1.16.3 and earlier, STARDOM VDS R7.50 and earlier, STARDOM FCN/FCJ Simulator R4.20 and earlier, ASTPLANNER R15.01 and earlier, TriFellows V5.04 and earlier) allows remote attackers to stop the license management function or execute an arbitrary program via unspecified vectors.