Update 4. 0. 3 for Microsoft . NET Framework 4 – Runtime Update Introduction Update 4 0 3 for Microsoft NET Framework 4 is now available This update includes a set of new features and fixes some bugs, based on top customer requests and the NET Framework scenarios Notes This update release updates only the runtime files for the Microsoft NET Framework 4 For more information about the details of this update, see the "More Information" section This
October 14, 2025-KB5066743 Cumulative Update for . NET Framework 3. 5, 4. . . . Summary This article describes the security and cumulative update for 3 5, 4 8 and 4 8 1 for Windows Server 2022 Security Improvements CVE-2025-21176 - NET Framework Remote Code Execution vulnerability This security update addresses a remote code execution vulnerability detailed in CVE-2025-21176 Quality and Reliability Improvements For a list of improvements that were released with this
October 14, 2025-KB5066746 Cumulative Update for . NET Framework 3. 5, 4. . . . Summary This article describes the security and cumulative update for 3 5, 4 8 and 4 8 1 for Windows 10 Version 21H2 Security Improvements CVE-2025-21176 - NET Framework Remote Code Execution vulnerability This security update addresses a remote code execution vulnerability detailed in CVE-2025-21176 Quality and Reliability Improvements For a list of improvements that were released with
October 14, 2025-KB5066747 Cumulative Update for . NET Framework 3. 5, 4. . . . Summary This article describes the security and cumulative update for 3 5, 4 8 and 4 8 1 for Windows 10 Version 22H2 Security Improvements CVE-2025-21176 - NET Framework Remote Code Execution vulnerability This security update addresses a remote code execution vulnerability detailed in CVE-2025-21176 Quality and Reliability Improvements For a list of improvements that were released with
Microsoft . NET Framework 4. 8 on Windows 10 version 1709, Windows 10 . . . This article describes an update for Microsoft NET Framework 4 8 on Windows 10, version 1709, Windows 10, version 1803, Windows Server, version 1803, Windows 10, version 1809 and Windows Server, version 1809 and Windows Server 2019 Please note: NET Framework 4 8 has been refreshed with the latest servicing updates as of January 14 th, 2020