Source: BleepingComputer Author: Lawrence Abrams URL: https://www.bleepingcomputer.com/news/microsoft/windows-10-kb5049981-update-released-with-new-byovd-blocklist/

ONE SENTENCE SUMMARY:

Microsoft released mandatory KB5049981 update for Windows 10 to enhance security and address vulnerabilities in drivers.

MAIN POINTS:

1. KB5049981 is a cumulative update for Windows 10 22H2 and 21H2.
2. Update includes security fixes for January 2025 Patch Tuesday.
3. Users can check for updates manually via Windows Update settings.
4. Automatic installation occurs after checking for updates.
5. Windows builds are updated to 19045.5371 and 19044.5371 respectively.
6. Manual download is available from the Microsoft Update Catalog.
7. No preview updates will be released in December 2024.
8. Updated Kernel driver blocklist prevents exploitation of vulnerable drivers.
9. Known issues include problems with OpenSSH and certain Citrix components.
10. Citrix Session Recording Agent version 2411 may block update installation.

TAKEAWAYS:

1. Always keep your Windows updated for optimal security.
2. Manually check updates if automatic installation is inconvenient.
3. Be aware of potential issues with third-party software like Citrix.
4. Security updates can prevent serious vulnerabilities in the system.
5. Plan update installations around your schedule for minimal disruption.