Mu Security Advisory: Multiple Pre-Authentication Vulnerabilities in MailEnable SMTP [MU-200609-01]
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/50597/MU-200609-01.txt
Source: https://packetstormsecurity.com/files/50597/MU-Security-Advisory-2006-09.01.html