PrintNightmare Aftermath: Windows Print Spooler Is Better. What's Next?

The report summarizes the PrintNightmare family of vulnerabilities in the Windows Print Spooler (notably CVE-2021-34527), the cascade of additional Print Spooler CVEs discovered since 2021, Microsoft’s mitigations (Point and Print default behavior changes, Group Policy options, signing requirements), and continued attacker interest including exploitation by APT28 and other actors; it emphasizes high impact (system-level privilege escalation, domain controller risk), broad exposure, and recommended protective measures such as patching, disabling the service where possible, and tightening Group Policy and access controls.