PrintNightmare

Remote exploitation of the Windows Print Spooler driver-install RPC path using CVE-2021-34527 to load a DLL from an SMB share readable by the target and execute it in the Spooler service context, potentially as SYSTEM. Microsoft identifies CVE-2021-34527 as the PrintNightmare remote-code-execution issue; CVE-2021-1675 is a related Print Spooler vulnerability and is not interchangeable with this remote procedure. The workflow requires an affected patch and Point and Print configuration, authorized credentials, RPC/SMB reachability to the target, and SMB access from the target to the separate file host.