Untrusted search path vulnerability in VMware Workstation 8.x before 8.0.5 and VMware Player 4.x before 4.0.5 on Windows allows host OS users to gain host OS privileges via a Trojan horse DLL in a "system folder."
https://exchange.xforce.ibmcloud.com/vulnerabilities/79923
http://www.vmware.com/security/advisories/VMSA-2012-0015.html