Windows Server 2012 (Monthly Rollup KB5004956 / Security only KB5004960).
The PrintNightmare bug tracked as CVE-2021-34527 enables attackers to take over affected servers via remote code execution (RCE) with SYSTEM privileges.ĭetailed steps on how to install these out-of-band security updates are available in the support documents linked below: "An update has now been released for all affected versions of Windows that are still in support," Microsoft said in the Windows message center. Microsoft has released the KB5004948 emergency security update to address the Windows Print Spooler PrintNightmare vulnerability on all editions of Windand Windows Server 2016.