Unspecified vulnerability in Cisco TelePresence C Series Endpoints, E/EX Personal Video units, and MXP Series Codecs, when using software versions before TC 4.0.0 or F9.1, allows remote attackers to cause a denial of service (crash) via a crafted SIP packet to port 5060 or 5061, aka Bug ID CSCtq46500.
https://exchange.xforce.ibmcloud.com/vulnerabilities/69513
http://www.securitytracker.com/id?1025994
http://www.securityfocus.com/bid/49392
http://www.securityfocus.com/archive/1/519698/100/0/threaded
http://www.cisco.com/en/US/products/products_security_advisory09186a0080b91395.shtml