From zdnet.com
What you think you know as PrintNightmare, might not be what Microsoft refers to, or then again it might.
During the week, PrintNightware, a critical Windows print spooler vulnerability that allowed for remote code execution was known as CVE-2021-1675.
Exploits were publicly available after Microsoft’s patches failed to fix the issue completely and the security researchers had already published their code, said they deleted it, but it was already branched on GitHub.