HGFS.sys in the VMware Tools package in VMware Workstation 5.x before 5.5.6 build 80404, VMware Player before 1.0.6 build 80404, VMware ACE before 1.0.5 build 79846, VMware Server before 1.0.5 build 80187, and VMware ESX 2.5.4 through 3.0.2 does not properly validate arguments in user-mode METHOD_NEITHER IOCTLs to the \\.\hgfs device, which allows guest OS users to modify arbitrary memory locations in guest kernel memory and gain privileges.

Unspecified vulnerability in a certain ActiveX control in Reconfig.DLL in VMware Workstation 5.5.x before 5.5.8 build 108000, VMware Workstation 6.0.x before 6.0.5 build 109488, VMware Player 1.x before 1.0.8 build 108000, VMware Player 2.x before 2.0.5 build 109488, VMware ACE 1.x before 1.0.7 build 108880, VMware ACE 2.x before 2.0.5 build 109488, and VMware Server before 1.0.7 build 108231 might allow local users to cause a denial of service to the Virtual Disk Mount Service (vmount2.exe), related to the ConnectPopulatedDiskEx function.