Verso NetPerformer FRAD ACT SDM-95xx 7.xx (R1) and earlier, SDM-93xx 10.x.x (R2) and earlier, and SDM-92xx 9.x.x (R1) and earlier allow remote attackers to cause a denial of service (hang or reboot) via an ICMP packet with the same destination and source address and port, aka the "Land" vulnerability.