The management interface on the A-LINK WL54AP3 and WL54AP2 access points has a blank default password for the admin account, which makes it easier for remote attackers to obtain access.
https://www.exploit-db.com/exploits/6899
https://exchange.xforce.ibmcloud.com/vulnerabilities/51199
http://www.securityfocus.com/archive/1/497997/100/0/threaded