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. Microsoft have not yet released a fix in the form of an update/patch – however disabling the print spooler service on domain controllers is a mitigation and should be actioned as soon as possible. 

FIT clients will be contacted soon regarding remediation steps and updates. 

Dan Robinson

Dan is a Senior Technical resource within the managed service team. He looks after 1st line personnel and has a specialist skills with SCCM, Intune, Patching processes and general Infrastructure.