Critical Windows Print Spooler Vulnerability CVE-2021-34527 Exploited

CVE-2021-34527 ("PrintNightmare") is a critical Windows Print Spooler RCE vulnerability (CVSSv3 8.8) that can allow authenticated users to execute arbitrary code across affected Windows systems; Microsoft issued emergency patches in July 2021 but additional mitigations (e.g., disabling Point and Print) are needed for full remediation, and active exploitation with public tools has been observed, elevating risk of ransomware and other attacks.