Although the PrintNightmare security flaw that exposed Windows computers to attack has been addressed, some printer models are now experiencing a new issue due to the upgrade.
According to Microsoft, the KB5004945 patch for the PrintNightmare attack, which was brought on by a Windows Print Spooler vulnerability, is operating as planned. However, some customers have complained about the security update resulting in printer connectivity issues, particularly with Zebra label printers.
According to Microsoft, the connectivity issues are not related to the PrintNightmare Fix Doesn't Agree With Some Printers but are caused by changes associated with the overall upgrade.
The OOB security update works against known printer spooling exploits and other public reports commonly referred to as PrintNightmare, according to Microsoft's blog update. According to every report Microsoft looked into, the default Point and Print registry settings have been changed to an unsecured setup.
Zebra advises deleting the KB5004945 update until the business can provide its version, according to a statement to The Verge.
To remove the risk of a possible Windows Print Spooler exploit, Microsoft advises installing the CVE-2021-34527 security update immediately. After installation, following the update advisory's instructions, you should review your registry settings.
You need to search for three distinct registry keys: