The remote SMTP server is prone to a stack based overflow. Description : QK SMTP Server is installed on the remote host. The application does not properly check it's boundaries for user supplied input in the 'RCPT TO' field. This results in a stack based overflow, where it's possible to crash the service or compromise the host.
Upgrade to QK SMTP Server 3.1 beta or a newer release.
Updated on 2015-03-25