Cisco Wireless LAN Solution Engine (WLSE) 2.0 through 2.5 and Hosting Solution Engine (HSE) 1.7 through 1.7.3 have a hardcoded username and password, which allows remote attackers to add new users, modify existing users, and change configuration.
https://exchange.xforce.ibmcloud.com/vulnerabilities/15773
http://www.securityfocus.com/bid/10076
http://www.kb.cert.org/vuls/id/659228
http://www.cisco.com/warp/public/707/cisco-sa-20040407-username.shtml