Unspecified vulnerability in the POP service in MailEnable Standard Edition before 1.94, Professional Edition before 1.74, and Enterprise Edition before 1.22 has unknown attack vectors and impact related to "authentication exploits". NOTE: this is a different set of affected versions, and probably a different vulnerability than CVE-2006-1337.

The IMAP service (MEIMAPS.exe) in MailEnable Professional Edition and Enterprise Edition 3.13 and earlier allows remote attackers to cause a denial of service (crash) via (1) SEARCH and (2) APPEND commands without required arguments, which triggers a NULL pointer dereference.

Multiple buffer overflows in the IMAP service (MEIMAPS.EXE) in MailEnable Professional Edition and Enterprise Edition 3.13 and earlier allow remote authenticated attackers to execute arbitrary code via long arguments to the (1) FETCH, (2) EXAMINE, and (3) UNSUBSCRIBE commands.

Multiple unspecified vulnerabilities in the SMTP service in MailEnable Standard Edition 1.x, Professional Edition 3.x and earlier, and Enterprise Edition 3.x and earlier allow remote attackers to cause a denial of service (crash) via crafted (1) EXPN or (2) VRFY commands.

Unknown vulnerability in SMTP authentication for MailEnable allows remote attackers to cause a denial of service (crash).

Unknown vulnerability in the SMTP service in MailEnable Standard before 1.9 and Professional before 1.6 allows remote attackers to cause a denial of service (crash) during authentication.