For information on the Windows print spooler remote code execution vulnerability and how to fix/prevent it, please refer to the below article from Microsoft:
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34527
For issues with printing from Zebra printers after updating windows, please see the below link:
https://supportcommunity.zebra.com/s/article/000021051?language=en_US&icid=EV_1000_US&sfid=&co=