VMware ESXi 3.5, 4.0, and 4.1 and ESX 3.5, 4.0, and 4.1 do not properly implement port-based I/O operations, which allows guest OS users to gain guest OS privileges by overwriting memory locations in a read-only memory block associated with the Virtual DOS Machine.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Esxi | Vmware | 3.5 (including) | 3.5 (including) |
| Esxi | Vmware | 4.0 (including) | 4.0 (including) |
| Esxi | Vmware | 4.1 (including) | 4.1 (including) |