MG-SOFT Net Inspector 6.5.0.828 and earlier for Windows allows remote attackers to cause a (1) denial of service (exception and crash) via a UDP packet to the SNMP Trap Service (MgWTrap3.exe) or (2) denial of service (device freeze or memory consumption) via a malformed request to the Net Inspector Server (niengine).
https://www.exploit-db.com/exploits/5269
http://www.securityfocus.com/bid/28266
http://www.securityfocus.com/archive/1/489704/100/0/threaded