Researchers have bypassed Microsoft's emergency patch for the PrintNightmare vulnerability to achieve remote code execution and local privilege escalation with the official fix installed.
Last night, Microsoft released an out-of-band KB5004945 security update that was supposed to fix the PrintNightmare vulnerability that researchers disclosed by accident last month.
After the update was released, security researchers Matthew Hickey, co-founder of Hacker House, and Will Dormann, a vulnerability analyst for CERT/CC, determined that Microsoft only fixed the remote code execution component of the vulnerability.
https://www.bleepingcomputer.com/news/m ... erability/