Insecure method vulnerability in the ChilkatCrypt2.ChilkatCrypt2.1 ActiveX control (ChilkatCrypt2.dll 4.3.2.1) in Chilkat Crypt ActiveX Component allows remote attackers to create and overwrite arbitrary files via the WriteFile method. NOTE: this could be leveraged for code execution by creating executable files in Startup folders or by accessing files using hcp:// URLs. NOTE: some of these details are obtained from third party information.
https://www.exploit-db.com/exploits/6963
https://exchange.xforce.ibmcloud.com/vulnerabilities/46315
http://www.vupen.com/english/advisories/2008/2998
http://www.securityfocus.com/bid/32073