Patch KB5004946 arrived to deal with PrintNightmare critical problem in Windows 10 21H1, 20H2, and 2004. Till now positive results are coming out as the patching has fixed the printing error for many. In the meantime, Windows 10 v1909 has received KB5004946 as an out of band update for the same purpose. This will increase the version to 18363.1646 including resolving the Remote code execution vulnerability.
The Redmondians were continuously investigating and working to fix the RCE issues affecting print spooler service. After all, they bring 2 potential workarounds for the errors listed under CVE-2021-34527.
KB5004946 Windows 10 1909 out-of-band update
Here is the changelog –
Improvements and fixes
The patch addresses a remote code execution (RCE) exploit in the Print Spooler service titled as PrintNightmare and listed under CVE-2021-34527. This will allow the users, specifically, who are not administrators to install only signed print drivers to a print server. By default configuration, an administrator is able to install unsigned as well as signed drivers to a print server. Furthermore, the installed root certificates in the Trusted Root Certification Authorities of the system must trust the signed drivers. The tech giant recommends that you should instantly install this update on all supported clients and server operating system, starting with devices that currently host the print server role. You can also configure the the regedit DWORD RestrictDriverInstallationToAdministrators in order to prevent non-administrators from installing signed printer drivers on a print server. You can have more details on – KB5005010.
No known issues are found in this release.
How to download KB5004946 for Windows 10 1909 out-of-band update and insttall
Follow the methods to install this patch –
1. Using Automatic Windows update –
- Press the Winlogo key and type – updates.
- Press – Enter.
- Click – Check for updates and Restart after downloading the update.
2. Through Microsoft update catalog
- Go to the KB5004946 direct download link – The catalog.
- Click on the Download option for the file suitable for your system architecture.
- Once downloaded, double-click the MSU file and follow the instructions showing on your screen.