CERT urges administrators to disable the Windows Print spooler service in Domain Controllers and systems that don t print, while Microsoft attempts to clarify RCE flaw with a new CVE assignment. Microsoft originally addressed CVE-2021-1675 in June s Patch Tuesday updates as a minor elevation-of-privilege vulnerability, but the patch appears to fail against the RCE aspect of the bug. CERT/CC is part of the Software Engineering Institute, a federally funded research center operated by Carnegie Mellon University.
Source: https://threatpost.com/cisa-mitigation-printnightmare-bug/167515/