Microsoft has released an advisory for a new vulnerability in the Windows Print Spooler. The vulnerability can only be exploited locally to gain elevated privileges on a device. Microsoft has provided mitigation measures that admins can use to block attackers from exploiting the vulnerability. Not much is known at this time about the vulnerability, including what versions of Windows are vulnerable, but Microsoft has not released security updates to address this flaw. Vulnerability is printer driver-related, researcher Jacob Baines confirmed to BleepingComputer that it is not related to PrintNightmare.
Source: https://www.bleepingcomputer.com/news/microsoft/microsoft-shares-guidance-on-new-windows-print-spooler-vulnerability/