The Windows Print Spooler is one of the oldest Windows components that still hasnt gotten much scrutiny. Its largely unchanged since Windows NT 4, and was even famously abused by Stuxnet (using some similar APIs well be looking at!). There are a few others that both the team and ourselves have found, which may be patched in future releases. We apologize for the naming/branding of a CVE we did not originally anticipate a patch for this issue to have collided with other research.”]
Source: https://windows-internals.com/printdemon-cve-2020-1048/