This indicates a possible exploit of a denial of service vulnerability in CommuniGate Pro Core Server.
This flaw is due to an error in the LDAP component when handling negative BER (Basic Encoding Rules) length value.
CommuniGate Pro Server version 5.0.6 and prior.
Denial of service.
The execution of arbitrary code on the system.
Upgrade to CommuniGate Pro Server version 5.0.7 :