Buffer overflow in the Authenticate method in the INCREDISPOOLERLib.Pop ActiveX control in ImSpoolU.dll in IncrediMail 2.0 allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a long string in the first argument.

Incredimail build 5853710 does not properly handle (1) multipart/mixed e-mail messages with many MIME parts and possibly (2) e-mail messages with many "Content-type: message/rfc822;" headers, which allows remote attackers to cause a denial of service (stack consumption or other resource consumption) via a large e-mail message, a related issue to CVE-2006-1173.

Stack-based buffer overflow in the DoWebMenuAction function in the IncrediMail IMMenuShellExt ActiveX control (ImShExt.dll) allows remote attackers to execute arbitrary code via unspecified vectors.

IncrediMail stores attachments in a directory with a fixed name, which could make it easier for attackers to exploit vulnerabilities in other software that rely on installing and reading files from directories with known pathnames.

Directory traversal vulnerability in IncrediMail version 1400185 and earlier allows local users to overwrite files on the local hard drive by appending .. (dot dot) sequences to filenames listed in the content.ini file.