The DHCP client implementation in Universal Small Cell firmware on Cisco Small Cell products allows remote attackers to execute arbitrary commands via crafted DHCP messages, aka Bug ID CSCup47513.
http://www.securitytracker.com/id/1030509
http://www.securityfocus.com/bid/68307
http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2014-3307