Net-SNMP is a freely available, open source implementation of the
SNMP protocol. It was previously known as UCD-SNMP.
SNMP requests are messages sent from manager to agent systems.
They typically poll the agent for current performance or
configuration information, ask for the next SNMP object in a
Management Information Base (MIB), or modify the configuration
settings of the agent. SNMP traps are messages sent from agent to
manager systems. They typically notify the manager that some event
has occured or otherwise provide information about the status of
Multiple vulnerabilities have been discovered in this SNMP
implementation. A number of PROTOS test cases cause UCD-SNMP to
crash or experience great delays.