Cross-site scripting (XSS) vulnerability in ForgottenPassword.aspx in MailEnable Professional, Enterprise, and Premium 4.26 and earlier, 5.x before 5.53, and 6.x before 6.03 allows remote attackers to inject arbitrary web script or HTML via the Username parameter.

The IMAP service for MailEnable Professional and Enterprise Edition 2.0 through 2.34, Professional Edition 1.6 through 1.83, and Enterprise Edition 1.1 through 1.40 allows remote attackers to cause a denial of service (crash) via unspecified vectors that trigger a null pointer dereference, as addressed by the ME-10023 hotfix, and a different issue than CVE-2006-6423. NOTE: some details were obtained from third party information.

Stack-based buffer overflow in the IMAP service for MailEnable Professional and Enterprise Edition 2.0 through 2.35, Professional Edition 1.6 through 1.84, and Enterprise Edition 1.1 through 1.41 allows remote attackers to execute arbitrary code via a pre-authentication command followed by a crafted parameter and a long string, as addressed by the ME-10025 hotfix.

Multiple stack-based buffer overflows in the IMAP module (MEIMAPS.EXE) in MailEnable Professional 1.6 through 1.82 and 2.0 through 2.33, and MailEnable Enterprise 1.1 through 1.30 and 2.0 through 2.33 allow remote authenticated users to cause a denial of service (crash) or possibly execute arbitrary code via a long argument to the (1) EXAMINE or (2) SELECT command.