Heap-based buffer overflow in the Quiksoft EasyMail Objects 6 ActiveX control allows remote attackers to execute arbitrary code via a long argument to the AddAttachment method.
https://exchange.xforce.ibmcloud.com/vulnerabilities/53325
http://www.securityfocus.com/bid/36440
http://www.exploit-db.com/exploits/9705
http://archives.neohapsis.com/archives/bugtraq/2013-04/0220.html