Buffer overflow in the POP 3 (POP3) service in MailEnable Standard Edition before 1.93, Professional Edition before 1.73, and Enterprise Edition before 1.21 allows remote attackers to execute arbitrary code via unknown vectors before authentication.
Buffer overflow in MEHTTPS (HTTPMail) of MailEnable Professional 1.5 through 1.7 allows remote attackers to cause a denial of service (application crash) via a long HTTP GET request.