The host is installed with Wireshark 2.6.0 to 2.6.5 or 2.4.0 to 2.4.11 and is prone to a denial of service vulnerability. A flaw is present in the application, which fails to properly handle the case of a missing decryption data block in epan/dissectors/packet-isakmp.c file. Successful exploitation allows attackers to crash the ISAKMP dissector.