Stack-based buffer overflow in pcspref.dll in pcsws.exe in IBM Personal Communications 5.9.x before 5.9.8 and 6.0.x before 6.0.4 might allow remote attackers to execute arbitrary code via a long profile string in a WorkStation (aka .ws) file.
https://exchange.xforce.ibmcloud.com/vulnerabilities/73127
http://www.metasploit.com/modules/exploit/windows/fileformat/ibm_pcm_ws
http://www-01.ibm.com/support/docview.wss?uid=swg21586166