Virtualization software maker VMware issued an update last Thursday resolving a virtual machine communication interface (VMCI) vulnerability in its ESX Server, Workstation, Fusion and View products that could lead to a privilege escalation if unpatched.According to the VMware security advisory, a local attacker could potentially exploit a control code handling vulnerability in vmci.sys in order to tamper with memory allocation in the VMCI code and eventually obtain elevated privileges on Windows-based hosts and guest operating systems.The vulnerabilities affect systems running Workstation 9.0 as well as versions prior to 8.0.5; Fusion 5.x prior