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Researcher demonstrates bypassing Microsoft’s latest patch for PrintNightmare exploit

July 8, 2021

Via: TechSpot

PrintNightmare allows a remote attacker to take advantage of a flaw in the Windows Printer Spooler service and execute arbitrary commands with escalated privileges. Microsoft quickly addressed the critical vulnerability – found on all Windows versions – with an out-of-band security update.

However, it now looks like the exploit could be turning into an actual nightmare for Microsoft and IT admins following a demonstration of how the fix could be bypassed to leave a fully patched server vulnerable to PrintNightmare.

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