Exploit code has been released for an unpatched Windows privilege escalation flaw reported privately to Microsoft, allowing attackers to gain SYSTEM or elevated administrator permissions.

https://www.bleepingcomputer.com/news/security/disgruntled-researcher-leaks-bluehammer-windows-zero-day-exploit/

Disgruntled researcher leaks “BlueHammer” Windows zero-day exploit

Exploit code has been released for an unpatched Windows privilege escalation flaw reported privately to Microsoft, allowing attackers to gain SYSTEM or elevated administrator permissions.

BleepingComputer
@BleepingComputer Yeah, you’ll get that on these slop-build jobs.