VMware Urges Rapid Patching for Serious vCenter Server Bug Compliance Compliance Twitter Get Permission VMware is warning all vCenter Server administrators to patch their software to fix both a serious vulnerability that could be used to execute arbitrary code, as well as a separate authentication flaw. Administrators use vCenter Server to manage installations of vSphere, which is VMware's virtualization platform. The vulnerabilities need "your immediate attention if you are using vCenter Server," VMware's Bob Plankers says in a blog post. "All environments are different, have different tolerance for risk, and have different security controls and defense-in-depth to mitigate risk, so the decision on how to proceed is up to you," he writes. "However, given the severity, we strongly recommend that you act."