Update 28.1 for Microsoft Dynamics 365 Business Central 2026 Release Wave 1 (Application Build 28.1.49886, Platform Build 28.0.49873)

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.NET 9.0 Update - May 12, 2026

.NET 9.0 Update - May 12, 2026 .NET 9.0 has been refreshed with the latest update as of May 12, 2026. This update contains security fixes. See the release notes for details about updated packages..NET 9.0 servicing updates are upgrades. The latest servicing update for 9.0 will remove the previous...

.NET 10.0 Update - May 12, 2026

.NET 10.0 Update - May 12, 2026 .NET 10.0 has been refreshed with the latest update as of May 12, 2026. This update contains security fixes. See the release notes for details about updated packages..NET 10.0 servicing updates are upgrades. The latest servicing update for 10.0 will remove the...

.NET 8.0 Update - May 12, 2026

.NET 8.0 Update - May 12, 2026 .NET 8.0 has been refreshed with the latest update as of May 12, 2026. This update contains security fixes. See the release notes for details about updated packages..NET 8.0 servicing updates are upgrades. The latest servicing update for 8.0 will remove the previous...

May 12, 2026—KB5087471 (Monthly Rollup)

May 12, 2026—KB5087471 Monthly Rollup Important The installation of this Extended Security Update ESU might fail when you try to install it on an Azure Arc-enabled device that is running Windows Server 2012 R2. For a successful installation, please make sure all Subset of endpoints for ESU only a...

KB5090408 - Description of the security update for SQL Server 2019 GDR: May 12, 2026

KB5090408 - Description of the security update for SQL Server 2019 GDR: May 12, 2026 Summary Known issues in this update Improvements and fixes included in this update How to obtain and install the update More information File information ​​​​​​​Information about protection and security Summary...

Update 26.12 for Microsoft Dynamics 365 Business Central 2025 Release Wave 1 (Application Build 26.12.48244, Platform Build 26.0.48120)

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Update 25.18 for Microsoft Dynamics 365 Business Central 2024 Release Wave 2 (Application Build 25.18.48229, Platform Build 25.2.48119)

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KB5091223 - Description of the security update for SQL Server 2025 GDR: May 12, 2026

KB5091223 - Description of the security update for SQL Server 2025 GDR: May 12, 2026 Applies To SQL Server 2025 on Windows all editions, SQL Server 2025 on Linux all editions Summary Known issues in this update Improvements and fixes included in this update How to obtain and install the update Mo...

KB5089900 - Description of the security update for SQL Server 2022 CU24: May 12, 2026

KB5089900 - Description of the security update for SQL Server 2022 CU24: May 12, 2026 Summary Known issues in this update Improvements and fixes included in this update How to obtain and install the update How to obtain or download the latest cumulative update package for Linux More information...

KB5089899 - Description of the security update for SQL Server 2025 CU4: May 12, 2026

KB5089899 - Description of the security update for SQL Server 2025 CU4: May 12, 2026 Applies To SQL Server 2025 on Windows all editions, SQL Server 2025 on Linux all editions Summary Known issues in this update Improvements and fixes included in this update How to obtain and install the update Ho...

Description of the security update for Office 2016: June 9, 2023 (KB5002578)

Description of the security update for Office 2016: June 9, 2023 KB5002578 Summary This security update resolves a Microsoft Word Elevation of Privilege vulnerability. To learn more about the vulnerability, see Microsoft Common Vulnerabilities and Exposures CVE-2023-45473. Note: To apply this...

Description of the security update for SharePoint Server 2016 Language Pack: May 12, 2026 (KB5002869)

Description of the security update for SharePoint Server 2016 Language Pack: May 12, 2026 KB5002869 Summary Important: If you're running Microsoft SharePoint Server 2013-type workflows, you must install the August 2025 update for SharePoint Workflow Manager to your farm before you install this...

Description of the security update for Office 2016: May 12, 2026 (KB5002866)

Description of the security update for Office 2016: May 12, 2026 KB5002866 Summary This security update resolves a Microsoft Office remote code execution vulnerability. To learn more about the vulnerability, see the following security advisories: Microsoft Common Vulnerabilities and Exposures...

Description of the security update for Excel 2016: May 12, 2026 (KB5002865)

Description of the security update for Excel 2016: May 12, 2026 KB5002865 Summary This security update resolves Microsoft Excel remote code execution vulnerability and Microsoft Excel Information Disclosure vulnerability. To learn more about the vulnerabilities, see the following security...

Description of the security update for SharePoint Server 2019 Language Pack: May 12, 2026 (KB5002872)

Description of the security update for SharePoint Server 2019 Language Pack: May 12, 2026 KB5002872 Summary Important: If you're running 2013-type workflows, you mustinstall the August 2025 update for SharePoint Workflow Manager​​​​​​​ to your farm before you install this cumulative update. If...

Description of the security update for Office Online Server: May 12, 2026 (KB5002871)

Description of the security update for Office Online Server: May 12, 2026 KB5002871 Summary This security update resolves Microsoft Excel remote code execution vulnerability and Microsoft Excel Information Disclosure vulnerability. To learn more about the vulnerabilities, see the following securi...

KB5089271 - Description of the security update for SQL Server 2016 SP3 GDR: May 12, 2026

KB5089271 - Description of the security update for SQL Server 2016 SP3 GDR: May 12, 2026 Summary Known issues in this update 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...

KB5089270 - Description of the security update for SQL Server 2016 SP3 Azure Connect Feature Pack: May 12, 2026

KB5089270 - Description of the security update for SQL Server 2016 SP3 Azure Connect Feature Pack: May 12, 2026 Summary Known issues in this update Improvements and fixes included in this update How to obtain and install the update More information File information Information about protection an...

KB5091158 - Description of the security update for SQL Server 2022 GDR: May 12, 2026

KB5091158 - Description of the security update for SQL Server 2022 GDR: May 12, 2026 Summary Known issues in this update Improvements and fixes included in this update How to obtain and install the update More information File information ​​​​​​​Information about protection and security Summary...

KB5090407 - Description of the security update for SQL Server 2019 CU32: May 12, 2026

KB5090407 - Description of the security update for SQL Server 2019 CU32: May 12, 2026 Summary Known issues in this update Improvements and fixes included in this update How to obtain and install the update How to obtain or download the latest cumulative update package for Linux More information...

KB5090347 - Description of the security update for SQL Server 2017 GDR: May 12, 2026

KB5090347 - Description of the security update for SQL Server 2017 GDR: May 12, 2026 Summary Known issues in this update 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...

Service Update 1.44 for Microsoft Dynamics CRM (on-premises) 9.1

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May 12, 2026—KB5087541 (OS Build 25398.2330)

May 12, 2026—KB5087541 OS Build 25398.2330 This cumulative update for Windows Server, version 23H2 KB5087541, includes the latest security fixes and improvements, along with non-security updates from last month’s optional preview release. To learn more about differences between security updates,...

May 12, 2026—KB5087538 (OS Build 17763.8755)

May 12, 2026—KB5087538 OS Build 17763.8755 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...

Update 27.6 for Microsoft Dynamics 365 Business Central 2025 Release Wave 2 (Application Build 27.6.48260, Platform Build 27.0.48102)

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Description of the security update for Word 2016: May 12, 2026 (KB5002858)

Description of the security update for Word 2016: May 12, 2026 KB5002858 Summary This security update resolves a Microsoft Office remote code execution vulnerability and Microsoft Word Information Disclosure Vulnerability. To learn more about the vulnerabilities, see the following security...

KB5090354 - Description of the security update for SQL Server 2017 CU31: May 12, 2026

KB5090354 - Description of the security update for SQL Server 2017 CU31: May 12, 2026 Summary Known issues in this update 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...

May 12, 2026-KB5087053 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 10 Version 21H2 and Windows 10 Version 22H2

May 12, 2026-KB5087053 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 10 Version 21H2 and Windows 10 Version 22H2 Release Date: May 12, 2026 Version: .NET Framework 3.5 and 4.8.1 The May 12, 2026 update for Windows 10 Version 21H2 and Windows 10 Version 22H2 includes security and...

May 12, 2026-Security and Quality Rollup for .NET Framework 3.5 for Windows Server 2012 (KB5087048)

May 12, 2026-Security and Quality Rollup for .NET Framework 3.5 for Windows Server 2012 KB5087048 Applies to: Microsoft .NET Framework 3.5 Important The installation of this Extended Security Update ESU might fail when you try to install it on an Azure Arc-enabled device that is running Windows...

May 12, 2026-KB5087051 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 25H2 and Microsoft server operating system 24H2

May 12, 2026-KB5087051 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 25H2 and Microsoft server operating system 24H2 Release Date: May 12, 2026 Version: .NET Framework 3.5 and 4.8.1 The May 12, 2026 update for Windows 11, version 25H2 and Microsoft server operating...

May 12, 2026-KB5087055 Cumulative Update for .NET Framework 4.8.1 for Windows 11, version 26H1

May 12, 2026-KB5087055 Cumulative Update for .NET Framework 4.8.1 for Windows 11, version 26H1 Release Date: May 12, 2026 Version: .NET Framework 4.8.1 The May 12, 2026 update for Windows 11, version 26H1 includes security and cumulative reliability improvements in .NET Framework 4.8.1. We...

May 12, 2026-KB5087059 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows Server 2022

May 12, 2026-KB5087059 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows Server 2022 Release Date: May 12, 2026 Version: .NET Framework 3.5 and 4.8.1 The May 12, 2026 update for Windows Server 2022 includes security and cumulative reliability improvements in .NET Framework 3.5 and...

May 12, 2026-KB5087061 Cumulative Update for .NET Framework 3.5 and 4.7.2 for Windows 10, version 1809 and Windows Server 2019

May 12, 2026-KB5087061 Cumulative Update for .NET Framework 3.5 and 4.7.2 for Windows 10, version 1809 and Windows Server 2019 Release Date: May 12, 2026 Version: .NET Framework 3.5 and 4.7.2 The May 12, 2026 update for Windows 10, version 1809 and Windows Server 2019 includes security and...

May 12, 2026-Security and Quality Rollup for .NET Framework 4.6.2, 4.7, 4.7.1, 4.7.2 for Windows Server 2012 (KB5087062)

May 12, 2026-Security and Quality Rollup for .NET Framework 4.6.2, 4.7, 4.7.1, 4.7.2 for Windows Server 2012 KB5087062 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 Important The installation of this Extended...

May 12, 2026-Security and Quality Rollup for .NET Framework 4.6.2, 4.7, 4.7.1, 4.7.2 for Windows Server 2012 R2 (KB5087063)

May 12, 2026-Security and Quality Rollup for .NET Framework 4.6.2, 4.7, 4.7.1, 4.7.2 for Windows Server 2012 R2 KB5087063 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 Important The installation of this Extend...

May 12, 2026-KB5087065 Cumulative Update for .NET Framework 4.8 for Windows 10, version 1607 and Windows Server 2016

May 12, 2026-KB5087065 Cumulative Update for .NET Framework 4.8 for Windows 10, version 1607 and Windows Server 2016 Release Date: May 12, 2026 Version: .NET Framework 4.8 The May 12, 2026 update for Windows 10, version 1607 and Windows Server 2016 includes security and cumulative reliability...

May 12, 2026-KB5087066 Cumulative Update for .NET Framework 3.5 and 4.8 for Windows 10, version 1809 and Windows Server 2019

May 12, 2026-KB5087066 Cumulative Update for .NET Framework 3.5 and 4.8 for Windows 10, version 1809 and Windows Server 2019 Release Date: May 12, 2026 Version: .NET Framework 3.5 and 4.8 The May 12, 2026 update for Windows 10, version 1809 and Windows Server 2019 includes security and cumulative...

May 12, 2026-Security and Quality Rollup for .NET Framework 3.5 for Windows Server 2012 R2 (KB5087049)

May 12, 2026-Security and Quality Rollup for .NET Framework 3.5 for Windows Server 2012 R2 KB5087049 Applies to: Microsoft .NET Framework 3.5 Important The installation of this Extended Security Update ESU might fail when you try to install it on an Azure Arc-enabled device that is running Window...

May 12, 2026-KB5087054 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 24H2

May 12, 2026-KB5087054 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 24H2 Release Date: May 12, 2026 Version: .NET Framework 3.5 and 4.8.1 The May 12, 2026 update for Windows 11, version 24H2 includes security and cumulative reliability improvements in .NET Framework...

May 12, 2026-KB5087058 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 23H2

May 12, 2026-KB5087058 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 23H2 Release Date: May 12, 2026 Version: .NET Framework 3.5 and 4.8.1 The May 12, 2026 update for Windows 11, version 23H2 includes security and cumulative reliability improvements in .NET Framework...

May 12, 2026-KB5087064 Cumulative Update for .NET Framework 3.5 and 4.8 for Windows 10 Version 21H2 and Windows 10 Version 22H2

May 12, 2026-KB5087064 Cumulative Update for .NET Framework 3.5 and 4.8 for Windows 10 Version 21H2 and Windows 10 Version 22H2 Release Date: May 12, 2026 Version: .NET Framework 3.5 and 4.8 The May 12, 2026 update for Windows 10 Version 21H2 and Windows 10 Version 22H2 includes security and...

May 12, 2026-Security and Quality Rollup for .NET Framework 4.8 for Windows Server 2012 (KB5087067)

May 12, 2026-Security and Quality Rollup for .NET Framework 4.8 for Windows Server 2012 KB5087067 Applies to: Microsoft .NET Framework 4.8 Important The installation of this Extended Security Update ESU might fail when you try to install it on an Azure Arc-enabled device that is running Windows...

May 12, 2026-KB5087068 Cumulative Update for .NET Framework 3.5 and 4.8 for Windows Server 2022

May 12, 2026-KB5087068 Cumulative Update for .NET Framework 3.5 and 4.8 for Windows Server 2022 Release Date: May 12, 2026 Version: .NET Framework 3.5 and 4.8 The May 12, 2026 update for Windows Server 2022 includes security and cumulative reliability improvements in .NET Framework 3.5 and 4.8. W...

May 12, 2026-Security and Quality Rollup for .NET Framework 4.8 for Windows Server 2012 R2 (KB5087069)

May 12, 2026-Security and Quality Rollup for .NET Framework 4.8 for Windows Server 2012 R2 KB5087069 Applies to: Microsoft .NET Framework 4.8 Important The installation of this Extended Security Update ESU might fail when you try to install it on an Azure Arc-enabled device that is running Window...

KB5088064: Servicing stack update for Windows 10, version 1607 and Windows Server 2016: May 12, 2026

KB5088064: Servicing stack update for Windows 10, version 1607 and Windows Server 2016: May 12, 2026 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 o...

May 12, 2026-Security and Quality Rollup for .NET Framework 3.5, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows Server 2012 (KB5088860)

May 12, 2026-Security and Quality Rollup for .NET Framework 3.5, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows Server 2012 KB5088860 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 Framework 4.7.2...

May 12, 2026-KB5088859 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 10 Version 21H2

May 12, 2026-KB5088859 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 10 Version 21H2 Release Date: May 12, 2026 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 10 Version 21H2...

May 12, 2026-Security and Quality Rollup for .NET Framework 3.5, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows Server 2012 R2 (KB5088861)

May 12, 2026-Security and Quality Rollup for .NET Framework 3.5, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows Server 2012 R2 KB5088861 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 Framework 4.7.2...

May 12, 2026-KB5088864 Cumulative Update for .NET Framework 3.5, 4.7.2 and 4.8 for Windows 10, version 1809 and Windows Server 2019

May 12, 2026-KB5088864 Cumulative Update for .NET Framework 3.5, 4.7.2 and 4.8 for Windows 10, version 1809 and Windows Server 2019 Release Date: May 12, 2026 Version: .NET Framework 3.5, 4.7.2 and 4.8 Summary This article describes the security and cumulative update for 3.5, 4.7.2 and 4.8 for...