The kernel in Cisco TelePresence Server 3.0 through 4.2(4.18) on Mobility Services Engine (MSE) 8710 devices allows remote attackers to cause a denial of service (panic and reboot) via a crafted sequence of IPv6 packets, aka Bug ID CSCuu46673.
http://www.securitytracker.com/id/1035499
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160406-cts