The Internet Group Management Protocol (IGMP) allows local users to cause a denial of service via an IGMP membership report to a target's Ethernet address instead of the Multicast group address, which causes the target to stop sending reports to the router and effectively disconnect the group from the network.

Unspecified vulnerability in Internet Group Management Protocol (IGMP) of HP Tru64 4.0F through 5.1A allows remote attackers to cause a denial of service via unknown attack vectors. NOTE: this might be the same issue as CVE-2002-2185, but there are insufficient details to be certain.