Cisco Firepower Management Center and FireSIGHT System Software 6.0.1 mishandle comparisons between URLs and X.509 certificates, which allows remote attackers to bypass intended do-not-decrypt settings via a crafted URL, aka Bug ID CSCva50585.
http://www.securitytracker.com/id/1036877
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160921-fmc