Microsoft has released another cumulative update for the supported versions of the Windows 10 software platform. It does not bring any new features, but fixes various bugs and vulnerabilities, including a print spooler vulnerability known as PrintNightmare. KB5005033 is already available for download through Microsoft Update.
Information about a dangerous vulnerability in PrintNightmare’s print spooler emerged last month when researchers mistakenly published a PoC exploit to exploit it. Exploiting this flaw allows remote code execution with system privileges, which makes it very dangerous. Microsoft released an emergency patch to fix the problem, but it turned out that it does not completely close the vulnerability, and attackers still have the opportunity to exploit it.
It looks like the developers have finally fixed the issue with the release of KB5005033. Installing the above package results in adjustments to the Point and Print functionality in Windows to improve security. Therefore, you will need administrator rights to install and update Point and Print drivers later. This means that installing the update will prevent further exploitation of PrintNightmare and a number of other known print spooler vulnerabilities.
The developers recommend not to delay the installation of the KB5005033 update. This is due to the fact that attackers can still carry out attacks on systems where the PrintNightmare vulnerability has not been fixed.