The Remote Mobile Access Subsystem in Cisco Unified Communications Manager (CM) 10.0(1) and earlier does not properly validate the Subject Alternative Name (SAN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof VCS core devices via a crafted certificate issued by a legitimate Certification Authority, aka Bug ID CSCuq86376.
https://exchange.xforce.ibmcloud.com/vulnerabilities/98574
http://www.securitytracker.com/id/1031181
http://www.securityfocus.com/bid/71013
http://tools.cisco.com/security/center/viewAlert.x?alertId=36381
http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2014-7991