Cisco TelePresence Recording Server devices with software 1.6.x allow remote attackers to cause a denial of service (thread consumption and device outage) via a malformed request, related to an "ad hoc recording" issue, aka Bug ID CSCtf97205.
https://exchange.xforce.ibmcloud.com/vulnerabilities/65607
http://www.securitytracker.com/id?1025114
http://www.securityfocus.com/bid/46522
http://www.cisco.com/en/US/products/products_security_advisory09186a0080b6e11d.shtml