The MSDE version of Lyris ListManager 5.0 through 8.9b configures the sa account in the database to use a password with a small search space ("lyris" and up to 5 digits, possibly from the process ID), which allows remote attackers to gain access via a brute force attack.
http://www.vupen.com/english/advisories/2005/2820
http://www.securityfocus.com/archive/1/419077/100/0/threaded
http://secunia.com/advisories/17943
http://metasploit.com/research/vulns/lyris_listmanager/
http://archives.neohapsis.com/archives/fulldisclosure/2005-12/0349.html