2025 January KB5049981 Windows 10 Patch and 8 Zero-Day Vulnerabilities and 159 Flaws
Let’s discuss 2025 January KB5049981 Windows 10 Patch and 8 Zero-Day Vulnerabilities and 159 Flaws. Microsoft provided several improvements in the January 2025 Patch Tuesday update, which was updated on Windows 10.
This month, Windows 11 also has many features and improvements. There are mainly 3 versions available on Windows 11, such as 22H2, 23H2, and 24H2. This month, Windows 11 has KB5050009 and KB5050021. IT administrators can easily schedule updates for their organization.
Microsoft usually addresses Fixed and Known issues with every update. One Fixed Issue affected the Windows Motherboard, which occurred after the Motherboard was replaced. In this blog post, you can review the vulnerabilities and flaws addressed by Microsoft.
There are 159 vulnerabilities including 10 critical Remote Code Execution (RCE) vulnerabilities have been addressed by Microsoft. The notable vulnerabilities are Windows NTLM V1, and Windows Remote Desktop Services have been fixed.
Table of Contents
KB5049981 Zero Day Security Vulnerability for January 2025
There are 8 zero-day vulnerabilities are released by Microsoft in January 2025 Patch Tuesday Update. CVE-2025-21335 Windows Hyper-V NT Kernel Integration VSP Elevation of Privilege Vulnerability, CVE-2025-21395 Microsoft Access Remote Code Execution Vulnerability etc.
| CVE Number | CVE Title | Publicly Disclosed | Exploitability Assessment | Exploited |
|---|---|---|---|---|
| CVE-2025-21335 | Windows Hyper-V NT Kernel Integration VSP Elevation of Privilege Vulnerability | No | Exploitation Detected | Yes |
| CVE-2025-21334 | Windows Hyper-V NT Kernel Integration VSP Elevation of Privilege Vulnerability, | No | Exploitation Detected | Yes |
| CVE-2025-21333 | Windows Hyper-V NT Kernel Integration VSP Elevation of Privilege Vulnerability | No | Exploitation Detected | Yes |
| CVE-2025-21395 | Microsoft Access Remote Code Execution Vulnerability | Yes | Exploitation Less Likely | No |
| CVE-2025-21366 | Microsoft Access Remote Code Execution Vulnerability | Yes | Exploitation Less Likely | No |
| CVE-2025-21308 | Windows Themes Spoofing Vulnerability | Yes | Exploitation Less Likely | No |
| CVE-2025-21275 | Windows App Package Installer Elevation of Privilege Vulnerability | Yes | Exploitation Less Likely | No |
| CVE-2025-21186 | Microsoft Access Remote Code Execution Vulnerability | Yes | Exploitation Less Likely | No |
- Top 83 Windows 11 Desktop Admin Interview Questions
- Windows 10 Version Numbers Build Numbers Major Minor Build Rev
- Updated Windows 10 End of Life Dates
January 2025 Windows 10 Patch
In January, Many fixed issues are shows by Microsoft on the Windows 10 KB5049981. Printing Protocol (IPP) printer affected an issue. Windows stop responding due to this issue. The below table shows the Windows 10 22H2 KB.
| Windows 10 22H2 |
|---|
| KB5049981 |
Updated Version of Windows 10 After Installing KB5049981 January 2025 Patch
The Windows 10 patch Tuesday update helps you improve device security. After the updates, you get the latest version. Each update includes a current version number and build number. The following list shows the details.
- Windows 10 Version Details – Windows 10 22H2 KB5049981
- Version Details – Windows 10 version 22H2– (January 14, 2025—KB5049981 (OS Builds 19044.5371 and 19045.5371))
- More Details on Windows 10 version Numbers: Windows 10 Version Numbers Build Numbers Major Minor Build Rev
Issues Fixed with Windows 10 January Patch
Fixed issues are specific problems that have been addressed in a particular update. Some fixed issues are recognized by Microsoft on January 2025.
| Fixes with Windows 10 January patch | Details |
|---|---|
| An issue affected on list backup | Win32 shortcut and app list backup might not back up to the cloud due to this issue |
| Internet Printing Protocol (IPP) printer affected an issue and fixed by Microsoft | An issue affected on Internet Printing Protocol. Windows stop responding When you use an IPP USB printer |
- Free Generic Windows 10 Product Keys from Microsoft
- Windows 10 21H2 Support is Ending in June
- Windows 11 24H2 Now Available Through WSUS | New Features and Enhancements
Known Issues – Windows 10 KB5049981 January Patch
Known issues are problems or bugs that have been identified in a software release but have not yet been fixed by Microsoft. These issues are being worked on by Microsoft, and updates or fixes are typically provided in future releases. The table below shows the known issue on 2025.
| Summary | Originating Update | Details |
|---|---|---|
| An issue on Boot Linux which is occurred after installing he August 2024 Windows Security update released August 13, 2024. If you have enabled the dual-boot setup for Windows and Linux in your device, this issued occured. | OS Build 19044.4780 | Working on a final resolution |
Intune and SCCM Windows 10 Jan Patch Deployment
Intune and SCCM are the most commonly used patch management tools in enterprise environments. These tools allow you to deploy Windows 10 KB5049981 January Cumulative Update using Intune + WUfB and SCCM + WSUS.
SCCM – Learn more about SCCM patch deployments from how to create a Deploy New Software Update Patch Package Using SCCM ConfigMgr. SCCM ADR Automatic Deployment Rule Creation Process.
Intune – You can expedite the deployment and Installation of Jan 2025 patches using Intune.
How to Manually Windows 10 Jan Patches for Offline Install
To get the Cumulative Update for Windows KB5049981 of January 2025, we can download it manually from the Microsoft Update Catalog website. The tables below provide direct links to download the January 2025 Cumulative Updates for Windows 10.
You can check the Microsoft Update Catalog portal to get the direct download links to the hotfixes for the January 2025 LCU. Check this out: Microsoft Update Catalog – https://www.catalog.update.microsoft.com/ and Search Keyword 2025-01.
| Title | Product | Size | Direct Download |
|---|---|---|---|
| 2025-01 Cumulative Update for Windows 10 Version 22H2 for x64-based Systems (KB5049981) | Windows 10 22H2 | 671.3 MB | Download |
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Resource
January 14, 2025—KB5049981 (OS Builds 19044.5371 and 19045.5371)
Author
Anoop C Nair has been Microsoft MVP from 2015 onwards for 10 consecutive years! He is a Workplace Solution Architect with more than 22+ years of experience in Workplace technologies. He is also a Blogger, Speaker, and Local User Group Community leader. His primary focus is on Device Management technologies like SCCM and Intune. He writes about technologies like Intune, SCCM, Windows, Cloud PC, Windows, Entra, Microsoft Security, Career, etc.
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