Cisco TelePresence Server 3.1 on 7010, Mobility Services Engine (MSE) 8710, Multiparty Media 310 and 320, and Virtual Machine (VM) devices allows remote attackers to cause a denial of service (device reload) via malformed STUN packets, aka Bug ID CSCuv01348.
http://www.securitytracker.com/id/1035500
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160406-cts2