The dissect_nwp function in epan/dissectors/packet-nwp.c in the NWP dissector in Wireshark 2.0.x before 2.0.1 mishandles the packet type, which allows remote attackers to cause a denial of service (application crash) via a crafted packet.
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.