The H.225 subsystem in Cisco TelePresence System MXP Series Software before F9.3.1 allows remote attackers to cause a denial of service (device reload) via crafted packets, aka Bug ID CSCty45745.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2014-2200
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20140430-mxp