March 10, 2026—KB5078938 (OS Build 14393.8957)

March 10, 2026—KB5078938 OS Build 14393.8957 Windows Secure Boot certificate expirationImportant: Secure Boot certificates used by most Windows devices are set to expire starting in June 2026. Microsoft has been updating these certificates on consumer and non-managed business devices for the past...

December 9, 2025—Hotpatch KB5072014 (OS Build 26100.7392)

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October 14, 2025-KB5066128 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 25H2

October 14, 2025-KB5066128 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 25H2 Release Date: October 14, 2025 Version: .NET Framework 3.5 and 4.8.1 The October 14, 2025 update for Windows 11, version 25H2 includes security and cumulative reliability improvements in .NE...

.NET 9.0 Update - May 13, 2025 (KB5059201)

.NET 9.0 Update - May 13, 2025 KB5059201 NET 9.0 has been refreshed with the latest update as of May 13, 2025. This update contains both security and non-security fixes. See the release notes for details on updated packages..NET 9.0 servicing updates are upgrades. The latest servicing update for...

February 11, 2025—KB5052032 (Security-only update)

February 11, 2025—KB5052032 Security-only update End of support information Windows Server 2008 R2 Premium Assurance ends on January 13, 2026.Windows Server 2008 R2 Extended Security Updates ESU ended on January 10, 2023. Additionally, Extended Security Updates on Azure only support ended on...

Description of the security update for Word 2016: November 12, 2024 (KB5002619)

Description of the security update for Word 2016: November 12, 2024 KB5002619 Summary This security update resolves a Microsoft Word security feature bypass vulnerability. To learn more about the vulnerability, see Microsoft Common Vulnerabilities and Exposures CVE-2024-49033. Note: To apply this...

Description of the security update for Visio 2016: September 10, 2024 (KB5002634)

Description of the security update for Visio 2016: September 10, 2024 KB5002634 Summary This security update resolves a Microsoft Office Visio remote code execution vulnerability. To learn more about the vulnerability, see Microsoft Common Vulnerabilities and Exposures CVE-2024-43463. Note: To...

Description of the security update for Office Online Server: September 10, 2024 (KB5002601)

Description of the security update for Office Online Server: September 10, 2024 KB5002601 Summary This security update resolves a Microsoft Excel elevation of privilege vulnerability. To learn more about the vulnerability, see Microsoft Common Vulnerabilities and Exposures CVE-2024-43465. Notes:...

Description of the security update for Outlook 2016: August 13, 2024 (KB5002626)

Description of the security update for Outlook 2016: August 13, 2024 KB5002626 Summary This security update resolves a Microsoft Outlook remote code execution vulnerability. To learn more about the vulnerability, see Microsoft Common Vulnerabilities and Exposures CVE-2024-38173. Note: To apply th...

KB5040986 - Description of the security update for SQL Server 2019 GDR: July 9, 2024

KB5040986 - Description of the security update for SQL Server 2019 GDR: July 9, 2024 Summary Improvements and fixes included in this update How to obtain and install the update More information File information Information about protection and security Summary This security update resolves...

KB5040936 - Description of the security update for SQL Server 2022 GDR: July 9, 2024

KB5040936 - Description of the security update for SQL Server 2022 GDR: July 9, 2024 Summary Improvements and fixes included in this update How to obtain and install the update More information File information Information about protection and security Summary This security update resolves...

July 9, 2024-KB5041020 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 11, version 21H2

July 9, 2024-KB5041020 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 11, version 21H2 Revised August 28, 2024: Update breaking change details to known issue section.Revised July 30, 2024: Add breaking change information to known issue section. Release Date: July 9, 2024...

Description of the security update for SharePoint Server Subscription Edition: May 14, 2024 (KB5002599)

Description of the security update for SharePoint Server Subscription Edition: May 14, 2024 KB5002599 Summary This security update resolves a Microsoft SharePoint Server information disclosure vulnerability and Microsoft SharePoint Server remote code execution vulnerability. To learn more about t...

January 9, 2024-Security and Quality Rollup for .NET Framework 2.0, 3.0, 3.5 SP1, 4.6.2 for Windows Server 2008 SP2 (KB5034280)

January 9, 2024-Security and Quality Rollup for .NET Framework 2.0, 3.0, 3.5 SP1, 4.6.2 for Windows Server 2008 SP2 KB5034280 Applies to: Microsoft .NET Framework 2.0 Microsoft .NET Framework 3.0 Microsoft .NET Framework 3.5 SP1 Microsoft .NET Framework 4.6.2 REMINDER Windows Embedded 7 Standard...

.NET 7.0 Update - March 12, 2024 (KB5036451)

.NET 7.0 Update - March 12, 2024 KB5036451 NET 7.0 has been refreshed with the latest update as of March 12, 2024. This update contains both security and non-security fixes. See the release notes for details on updated packages..NET 7.0 servicing updates are upgrades. The latest servicing update...

Update 21.16 for Microsoft Dynamics 365 Business Central (on-premises) 2022 Release Wave 2 (Application Build 21.16.63199, Platform Build 21.0.63175)

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.NET 8.0 Update - February 13, 2024 (KB5035121)

.NET 8.0 Update - February 13, 2024 KB5035121 NET 8.0 has been refreshed with the latest update as of February 13, 2024. This update contains both security and non-security fixes. See the release notes for details on updated packages..NET 8.0 servicing updates are upgrades. The latest servicing...

Internet Explorer help

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KB5033592 - Description of the security update for SQL Server 2022 CU10: January 9, 2024

KB5033592 - Description of the security update for SQL Server 2022 CU10: January 9, 2024 Summary How to obtain and install the update How to obtain or download the latest cumulative update package for Linux More information File information Information about protection and security Summary This...

November 14, 2023—Hotpatch KB5032304 (OS Build 20348.2091)

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Service Update 0.49 for Microsoft Dynamics CRM (on-premises) 9.0

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September 12, 2023—KB5030219 (OS Build 22621.2283)

September 12, 2023—KB5030219 OS Build 22621.2283 For information about Windows update terminology, see the article about the types of Windows updates and the monthly quality update types. For an overview of Windows 11, version 22H2, see its update history page. Note Follow @WindowsUpdate to find...

September 12, 2023-KB5030181 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 11, version 21H2

September 12, 2023-KB5030181 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 11, version 21H2 Release Date: September 12, 2023 Version: .NET Framework 3.5, 4.8 and 4.8.1 Summary This article describes the security and Cumulative Update for 3.5, 4.8 and 4.8.1 for Windows 11,...

Description of the security update for Office Online Server: September 12, 2023 (KB5002470)

Description of the security update for Office Online Server: September 12, 2023 KB5002470 Summary This security update resolves a Microsoft Excel information disclosure vulnerability. To learn more about the vulnerability, see ​​Microsoft Common Vulnerabilities and Exposures CVE-2023-36766. Notes...

Description of the security update for Office 2016: September 12, 2023 (KB5002457)

Description of the security update for Office 2016: September 12, 2023 KB5002457 Summary This security update resolves a Microsoft Office security feature bypass vulnerability and Microsoft Office spoofing vulnerability. To learn more about the vulnerabilities, see the following security...

Description of the security update for SharePoint Enterprise Server 2016: September 12, 2023 (KB5002494)

Description of the security update for SharePoint Enterprise Server 2016: September 12, 2023 KB5002494 Summary This security update resolves a Microsoft Word remote code execution vulnerability and Microsoft SharePoint Server elevation of privilege vulnerability. To learn more about the...

Description of the security update for SharePoint Server Subscription Edition: July 11, 2023 (KB5002424)

Description of the security update for SharePoint Server Subscription Edition: July 11, 2023 KB5002424 Summary This security update resolves a Microsoft SharePoint remote code execution vulnerability, Microsoft SharePoint Server spoofing vulnerability, Microsoft SharePoint Server remote code...

Service Update 1.17 for Microsoft Dynamics CRM (on-premises) 9.1

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February 14, 2023-KB5022726 Cumulative Update for .NET Framework 3.5 and 4.8 for Azure Stack HCI, version 22H2

February 14, 2023-KB5022726 Cumulative Update for .NET Framework 3.5 and 4.8 for Azure Stack HCI, version 22H2 Release Date: February 14, 2023 Version: .NET Framework 3.5 and 4.8 Note: Revised on Jun 20, 2023 to add resolution to known issue. Summary This article describes the Cumulative Update f...

KB5022923: Servicing stack update for Windows Server 2012: February 14, 2023

KB5022923: Servicing stack update for Windows Server 2012: February 14, 2023 IMPORTANT For Windows Server 2012, the end of support EOS date is October 10, 2023. Extended Security Updates ESUs will be available for purchase no later than October 2022, but available for installation after the EOS...

December 13, 2022-Security Only Update for .NET Framework 3.5, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows 8.1 and Windows Server 2012 R2 (KB5021081)

December 13, 2022-Security Only Update for .NET Framework 3.5, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows 8.1 and Windows Server 2012 R2 KB5021081 Applies to: Microsoft .NET Framework 3.5 Microsoft .NET Framework 4.6.2 Microsoft .NET Framework 4.7 Microsoft .NET Framework 4.7.1 Microsoft .NET...

Cumulative Update 61 for Microsoft Dynamics NAV 2017 (Build 30699)

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November 8, 2022-Security Only Update for .NET Framework 3.5.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows 7 SP1 and Windows Server 2008 R2 SP1 (KB5020678)

November 8, 2022-Security Only Update for .NET Framework 3.5.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows 7 SP1 and Windows Server 2008 R2 SP1 KB5020678 Applies to: Microsoft .NET Framework 4.6.2 Microsoft .NET Framework 4.7 Microsoft .NET Framework 4.7.1 Microsoft .NET Framework 4.7.2 Microsoft...

July 12, 2022-Security and Quality Rollup for .NET Framework 3.5, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows 8.1, RT 8.1, and Windows Server 2012 R2 (KB5016568)

July 12, 2022-Security and Quality Rollup for .NET Framework 3.5, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows 8.1, RT 8.1, and Windows Server 2012 R2 KB5016568 Applies to: Microsoft .NET Framework 3.5 Microsoft .NET Framework 4.6.2 Microsoft .NET Framework 4.7 Microsoft .NET Framework 4.7.1 Microso...

Security Only Update for .NET Framework 3.5, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows Server 2012 (KB5012325)

Security Only Update for .NET Framework 3.5, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows Server 2012 KB5012325 Applies to: Microsoft .NET Framework 3.5 Microsoft .NET Framework 4.5.2 Microsoft .NET Framework 4.6 Microsoft .NET Framework 4.6.1 Microsoft .NET Framework 4.6.2...

March 8, 2022—KB5011491 (OS Build 10240.19235) - EXPIRED

March 8, 2022—KB5011491 OS Build 10240.19235 - EXPIRED EXPIRATION NOTICEIMPORTAN T As of 9/12/2023, this KB is no longer available from Windows Update, the Microsoft Update Catalog, or other release channels. We recommend that you update your devices to the latest security quality update. 12/8/20...

February 15, 2022—KB5010427 (OS Build 17763.2628) Preview

February 15, 2022—KB5010427 OS Build 17763.2628 Preview 11/17/20 For information about Windows update terminology, see the article about the types of Windows updates and the monthly quality update types. For an overview of Windows 10, version 1809, see its update history page. Highlights Updates ...

February 8, 2022—KB5010403 (Security-only update)

February 8, 2022—KB5010403 Security-only update Summary Learn more about this security update, including improvements and fixes, any known issues, and how to get the update. IMPORTANT Windows Server 2008 Service Pack 2 SP2 has reached the end of mainstream support and are now in extended support...

Description of the security update for SharePoint Server Subscription Edition: December 14, 2021 (KB5002045)

Description of the security update for SharePoint Server Subscription Edition: December 14, 2021 KB5002045 Summary This security update resolves a Microsoft SharePoint Server remote code execution vulnerability and Microsoft SharePoint Server spoofing vulnerability. To learn more about the...

Description of the security update for Excel 2016: October 12, 2021 (KB5002030)

Description of the security update for Excel 2016: October 12, 2021 KB5002030 Summary This security update resolves a Microsoft Excel information disclosure vulnerability and Microsoft Excel remote code execution vulnerabilities. To learn more about the vulnerabilities, see the following security...

Update 17.10 for Microsoft Dynamics 365 Business Central 2020 Release Wave 2 (Application Build 17.10.29463, Platform Build 17.0.29460): September 14, 2021 (KB5006075)

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Update 17.8 for Microsoft Dynamics 365 Business Central 2020 Release Wave 2 (Application Build 17.8.27267, Platform Build 17.0.27235)

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Description of the security update for Excel 2013: July 13, 2021 (KB5001993)

Description of the security update for Excel 2013: July 13, 2021 KB5001993 Summary This security update resolves a Microsoft Excel remote code execution vulnerability. To learn more about the vulnerability, see Microsoft Common Vulnerabilities and Exposures CVE-2021-34501 and Microsoft Common...

July 6, 2021 Security Update (KB5004961) Out-of-band

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Description of the security update for SharePoint Server 2019: April 13, 2021 (KB4504716)

Description of the security update for SharePoint Server 2019: April 13, 2021 KB4504716 Summary This security update resolves a Word remote code execution vulnerability and SharePoint denial-of-service attack vulnerability. To learn more about these vulnerabilities, see the following security...

Description of the security update for Office 2013: April 13, 2021 (KB4504727)

Description of the security update for Office 2013: April 13, 2021 KB4504727 Summary This security update resolves a Microsoft Excel remote code execution vulnerability. To learn more about the vulnerability, see Microsoft Common Vulnerabilities and Exposures CVE-2021-28454. Note: To apply this...

January 12, 2021—KB4598288 (Monthly Rollup)

January 12, 2021—KB4598288 Monthly Rollup IMPORTANT Verify that you have installed the required updates listed in the How to get this update section before installing this update. For information about the various types of Windows updates, such as critical, security, driver, service packs, and so...

Description of the security update for Excel 2013: January 12, 2021

Description of the security update for Excel 2013: January 12, 2021 Summary This security update resolves vulnerabilities in Microsoft Office that could allow remote code execution if a user opens a specially crafted Office file. To learn more about these vulnerabilities, see Microsoft Common...

Description of the security update for SharePoint Server 2019: January 12, 2021

Description of the security update for SharePoint Server 2019: January 12, 2021 Summary This security update resolves vulnerabilities in Microsoft Office that could allow remote code execution if a user opens a specially crafted Office file. To learn more about these vulnerabilities, see the...

Description of the security update for SharePoint Server 2019: December 8, 2020

Description of the security update for SharePoint Server 2019: December 8, 2020 Summary This security update resolves vulnerabilities in Microsoft Office that could allow remote code execution if a user opens a specially crafted Office file. To learn more about these vulnerabilities, see the...