MailEnable SMTP HELO Command Denial of Service Vulnerability

Summary
This host is running MailEnable and is prone to denial of service vulnerability.
Impact
Successful exploitation could allow remote attackers to crash the service by sending HELO command with specially crafted arguments. Impact Level: Application
Solution
Upgrade MailEnable version 6 or later, For updates refer to http://www.mailenable.com/
Insight
MailEnable SMTP service fails to handle the HELO command. This can be exploited to crash the service via a HELO command with specially crafted arguments.
Affected
MailEnable Standard version 1.92 and prior MailEnable Enterprise version 2.0 and prior MailEnable Professional version 2.0 and prior
References