Cisco TelePresence Video Communication Server (VCS) and Expressway Software before X8.2 allow remote attackers to cause a denial of service (device reload) via a high rate of crafted packets, aka Bug ID CSCui06507.
http://www.securitytracker.com/id/1031055
http://tools.cisco.com/security/center/viewAlert.x?alertId=35827
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20141015-vcs