CVE-2000-0772
The installation of Tumbleweed Messaging Management System (MMS) 4.6 and earlier (formerly Worldtalk Worldsecure) creates a default account "sa" with no password.
Date published : 2000-09-21
http://www.securityfocus.com/bid/1562
http://archives.neohapsis.com/archives/bugtraq/2000-08/0098.html