The Cisco Linksys WAG54GS Wireless-G ADSL Gateway with 1.01.03 and earlier firmware has "admin" as its default password for the "admin" account, which makes it easier for remote attackers to obtain access.
https://exchange.xforce.ibmcloud.com/vulnerabilities/41268
http://www.securityfocus.com/archive/1/489009/100/0/threaded