Usually, we post Windows Security Updates once they are out. This time it's a little delayed, but here it is nonetheless.
Microsoft Windows Security Updates: September 2025
Executive Summary
Microsoft has released 86 security updates for Microsoft products (9 critical and 72 important), and 5 patches for non-Microsoft issues (like Chromium).
For those of you who want all the details of the patches from the released updates, head to this page: Windows Security Updates September 2025.
Windows clients with known issues
- Windows 10: None
- Windows 11: Windows 11, version 24H2 (PowerShell Direct (PSDirect) connections failing in hotpatched devices)
- Windows Server 2008, Windows Server 2022, Windows Server 2025.
Windows Security Updates
Windows 10 version 22H2
- Support Page: KB5065429
- Security fixes and improvements
- This update fixes an issue that caused non-admin users to run into UAC prompts when MSI installers/repairs perform certain actions. It affected Office Professional Plus 2010 and multiple applications from Autodesk including AutoCAD. An issue related to WinSock was fixed.
- Refer to this optional update page for more changes in this update.
Windows 11 version 22H2 / 23H2
- Support Page: KB5065431
- Security fixes and improvements
- This update fixes an issue that caused non-admin users to run into UAC prompts when MSI installers/repairs perform certain actions. It affected Office Professional Plus 2010 and multiple applications from Autodesk including AutoCAD. An issue related to WinSock was fixed.
- Optional update page with more changes included in this update.
Windows 11 version 24H2
- Support page: KB5065426
- Security fixes and improvements
- An input issue that caused certain apps to stop responding was resolved. A bug that caused Internet Information Services (IIS) modules to disappear from IIS Manager was addressed in this update. A Network Device Interface (NDI) issue that affected audio in apps was fixed.
- Refer to the optional update page for additional information.
Known Issue: Installing the KB5063878 can cause audio stutter when Display Capture is on in OBS Studio.
List of important security vulnerabilities that were patched
Security advisories and updates
ADV 253991 - Guidance for secure Entra ID application authorization validation
Microsoft Office Updates
How to download and install the September 2025 security updates
Here is how you install the update immediately on a system:
- Open the Start menu, type Windows Update, and select the result.
- Activate the "check for updates" button. This runs a manual check for updates.
- Activate the "download & install all" button, if the update is not downloaded automatically.
Direct update downloads
Want to download the updates from the Microsoft Update Catalog? These links will help you.
Windows 10 version 22H2
KB5065429 2025-09 Cumulative Update for Windows 10 Version 22H2
Windows 11 version 23H2
KB5065431 2025-09 Cumulative Update for Windows 11 Version 22H2
Windows 11 version 23H2
KB5065431 2025-09 Cumulative Update for Windows 11 Version 23H2
Windows 11 version 24H2
KB5065426 2025-09 Cumulative Update for Windows 11 Version 24H2
Additional resources
- August 2025 Security Updates release notes
- List of software updates for Microsoft products
- List of the latest Windows Updates and Services Packs
- Security Updates Guide
- Microsoft Update Catalog site
- Our in-depth Windows update guide
- How to install optional updates on Windows 10
- Windows 11 24H2 Update History
- Windows 11 23H2 Update History
- Windows 10 Update History
As a reminder, Windows 10 reaches its end of life in exactly 30 days: October 14, 2025. You can follow this guide to extend security updates for a year.
Thank you for being a Ghacks reader. The post Overview of Windows Security Updates September 2025 appeared first on gHacks Technology News.
0 Commentaires