This indicates a possible exploit of a buffer-overflow vulnerability in Interaction SIP Proxy.
This flaw is caused by a buffer-overflow error in "i3sipmsg.dll" when processing malformed SIP REGISTER requests. It allows remote attackers to execute arbitrary code.
Interaction SIP Proxy version 3.0.010 and prior
System Compromise: Remote attackers can gain control of vulnerable systems.
Upgrade to Interaction SIP Proxy version 3.0.011 or later.