Microsoft releases update rollout KB5004954 out of Windows 8.1

Microsoft has released the update Roll KP 5004954 for Windows 8.1, RT8.1 and Windows Server 2012 R2 overnight. The update includes security updates and enhancements and fixes that were part of KB5003671 dated June 8, 2021 for Windows 8.1 and Windows Server 2012 R2. With this out-band update, CVE-2021-34527 resolves vulnerabilities in Microsoft Windows Print Spoiler service. After installing this and subsequent updates, non-admin users can only install signed printer drivers on the print server. Microsoft recommends installing this update on all supported Windows clients and servers, starting with devices that currently play the role of print server. The update can be downloaded from the Windows Update, Microsoft Update and Windows Server Update Services and Microsoft Update list. The update for Windows RT 8.1 is only available with the Windows Roll update. More information about this update can be found below or through Microsoft.

Download -> Download the update roll KB5004954 for Windows 8.1

The KB5004954 update for Windows 8.1 can now be downloaded:

Additional information on KB5004954 for Windows 8.1 is available from Microsoft.

CVE-2021-34527 | Vulnerability in Windows Ax spool remote code activation

Unplanned security updates for Windows can now be downloaded:

Via Update history for Windows 8.1