CVE-2016-1410
Cisco WebEx Meeting Center Original Release Base allows remote attackers to obtain sensitive information about username validity by (1) attending or (2) hosting a meeting, aka Bug ID CSCux84312.
Date published : 2016-05-27
http://www.securityfocus.com/bid/90908
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160526-wmc