Microsoft January 2026 Security Updates

Microsoft January 2026 Security Updates

This release consists of the following 112 Microsoft CVEs:

Tag CVE Base Score CVSS Vector Exploitability FAQs? Workarounds? Mitigations?

https://msrc.microsoft.com/update-guide/releaseNote/...

There is a new Out of Band Cumulative update released on 24th January, KB5078127 to correct bugs in the original patch Tuesday release and non booting systems.

January 24, 2026—KB5078127 (OS Builds 26200.7628 and 26100.7628 Out-of-band
Applies To

Summary

This out-of-band update for Windows 11, version 25H2 and 24H2 (KB5078127) is cumulative. It includes updates from previous security and non-security releases, along with an additional fix. To learn more about differences between security updates, optional non-security preview updates, out-of-band (OOB) updates, and continuous innovation, see Windows monthly updates explained. For information on Windows update terminology, see the different types of Windows software updates.

To view the latest updates about this release, visit the Windows release health dashboard or the update history page for Windows 11, version 25H2 and 24H2.


https://support.microsoft.com/en-gb/topic/january-24...