MailEnable POP3 Pre-Authentication Buffer Overflow [MU-200603-01] – A remote buffer overflow condition in MailEnable’s POP3 service could allow for arbitrary code execution. The vulnerable code can be exercised remotely without authentication.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/44831/MU-200603-01.txt
Source: https://packetstormsecurity.com/files/44831/MU-Security-Advisory-2006-03.01.html