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How to Mitigate Microsoft Print Spooler Vulnerability PrintNightmare

This week, PrintNightmare - Microsoft’s Print Spooler vulnerability (CVE-2021-34527) was upgraded from a ‘Low’ criticality to a ‘Critical’ criticality. This is due to a Proof of Concept published on GitHub, which attackers could potentially leverage for gaining access to Domain Controllers. As we reported earlier, Microsoft already released a patch in June 2021, but it wasn’t enough to stop