Microsoft is warning Windows users about an unpatched critical flaw in the Windows Print Spooler service. The vulnerability, dubbed PrintNightmare, was uncovered earlier this week after security researchers accidentally published a proof-of-concept (PoC) exploit. via Technology and News Today https://www.theverge.com/2021/7/2/22560435/microsoft-printnightmare-windows-print-spooler-service-vulnerability-exploit-0-day