The IP implementation on Cisco TelePresence Multipoint Switch before 1.8.1 Cisco TelePresence Manager before 1.9.0 and Cisco TelePresence Recording Server 1.8 and earlier allows remote attackers to cause a denial of service (networking outage or process crash) via (1) malformed IP packets (2) a high rate of TCP connection requests or (3) a high rate of TCP connection terminations aka Bug IDs CSCti21830 CSCti21851 CSCtj19100 CSCtj19086 CSCtj19078 CSCty11219 CSCty11299 CSCty11323 and CSCty11338.