VMware has released a security alert in response to a vulnerability in Windows-hosted VMware Workstation, VMware Player, and VMware ACE. This vulnerability exists in the host-to-guest shared folders feature and allows applications running in the guest operating system to access the host operating system's file system. Exploitation of this vulnerability may allow an attacker to circumvent the controls on the guest system and gain read and write access to the host file system.

US-CERT encourages users to review VMware knowledge base article 1004034 and apply the workarounds.

US-CERT will provide additional information as it becomes available.