Quote:Microsoft released security updates and non-security updates for all supported versions of its Windows operating system as well as other company products, including Microsoft Office, today as part of the May 2025 Patch Tuesday.

Our detailed overview of the May 2025 security updates for Windows assists home users and system administrators alike. It lists the updates for each supported version of Windows, highlights known issues, new features and changes, download links, and also links to all major support pages and resources.

Microsoft Windows Security Updates: May 2025

You may download the following Excel spreadsheet to get a list of released updates. Click on the following link to download the archive to the local device: Windows May 2025 Security Updates

Executive Summary

• Microsoft released a total of 78 security updates for various Microsoft products and 5 security update for non-Microsoft issues (e.g. Chromium).
  
• Windows clients with issues:
  • Windows 10 version 1809, 21H2, 22H2
    
• Windows Server clients with issues:
  • Windows Server 2008
    
  • Windows Server 2019
    
  • Windows Server 2022
    

Product overviewEach supported version of Windows and their critical vulnerabilities are listed below.

• Windows 10 version 22H2: 34 vulnerabilities, 3 critical, 31 important
  
• Windows 11 version 22H2 and 23H2: 35 vulnerabilities, 3 critical, 32 important
  
• Windows 11 version 24H2: 36 vulnerabilities, 3 critical, 33 important
  

Windows Server products

• Windows Server 2008 R2 (extended support only): 27 vulnerabilities: 3 critical,  36 important
  
• Windows Server 2016: 35 vulnerabilities: 3 critical, 32 important
  
• Windows Server 2019: 38 vulnerabilities: 3 critical, 35 important
  
• Windows Server 2022: 38 vulnerabilities: 3 critical, 35 important
  
• Windows Server 2025:  38  vulnerabilities: 3 critical, 35 important
  

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