Microsoft has released the KB5004948 emergency security update to address the Windows Print Spooler PrintNightmare vulnerability on all editions of Windows 10 1607 and Windows Server 2016. Security researchers have discovered that the patch is incomplete and it can be bypassed to achieve both remote code execution and local privilege escalation with the official fix installed. Microsoft recommends that you immediately install this update on all supported Windows client and server operating system, starting with devices that currently host the print server role. The official fix works out of the box on Windows 7, 8, 2008 and 2012 but require Point&Print configured for Windows 2016, 2019,10 & 11(?).
Source: https://www.bleepingcomputer.com/news/security/microsoft-printnightmare-now-patched-on-all-windows-versions/