.NET 8.0 Update - September 8, 2026

.NET 8.0 Update - September 8, 2026 .NET 8.0 has been refreshed with the latest update as of September 8, 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 t...

September 8, 2026-KB5126053 Cumulative Update for .NET Framework 4.8.1 for Windows 11, version 26H1

September 8, 2026-KB5126053 Cumulative Update for .NET Framework 4.8.1 for Windows 11, version 26H1 Applies To .NET Note Release Date: September 8, 2026 Version: .NET Framework 4.8.1 The September 8, 2026 update for Windows 11, version 26H1 includes security and cumulative reliability improvement...

Description of the security update for Microsoft Exchange Server 2019 CU15: September 8, 2026 (KB5121609)

Description of the security update for Microsoft Exchange Server 2019 CU15: September 8, 2026 KB5121609 Applies To Exchange Server 2019 This security update resolves vulnerabilities in Microsoft Exchange Server. To learn more about these vulnerabilities, see the following Common Vulnerabilities a...

Description of the security update for Microsoft Exchange Server Subscription Edition RTM: September 8, 2026 (KB5121608)

Description of the security update for Microsoft Exchange Server Subscription Edition RTM: September 8, 2026 KB5121608 Applies To Exchange Server SE This security update resolves vulnerabilities in Microsoft Exchange Server. To learn more about these vulnerabilities, see the following Common...

Description of Security Update 3 for Microsoft Skype for Business Server 2019 CU8: September 8, 2026 (KB5123300)

Description of Security Update 3 for Microsoft Skype for Business Server 2019 CU8: September 8, 2026 KB5123300 Applies To Skype for Business Server 2019 Summary This security update resolves vulnerabilities in Microsoft Skype for Business Server 2019. To learn more about these vulnerabilities, se...

Description of Security Update 1 for Microsoft Skype for Business Server SE CU1: September 8, 2026 (KB5123287)

Description of Security Update 1 for Microsoft Skype for Business Server SE CU1: September 8, 2026 KB5123287 Summary This cumulative update resolves vulnerabilities in Microsoft Skype for Business Server Subscription Edition. To learn more about these vulnerabilities, see the following security...

KB5122768 - Description of the security update for SQL Server 2022 CU26: September 8, 2026

KB5122768 - Description of the security update for SQL Server 2022 CU26: September 8, 2026 Applies To SQL Server 2022 on Windows all editions SQL Server 2022 on Linux all editions Release date: September 8, 2026 Version: 16.0.4275.2 Summary Known issues in this update Improvements and fixes...

KB5122771 - Description of the security update for SQL Server 2022 GDR: September 8, 2026

KB5122771 - Description of the security update for SQL Server 2022 GDR: September 8, 2026 Applies To SQL Server 2022 on Windows all editions SQL Server 2022 on Linux all editions Release date: September 8, 2026 Version: 16.0.1200.5 Summary Known issues in this update Improvements and fixes includ...

Service Update 1.48 for Microsoft Dynamics CRM (on-premises) 9.1

Service Update 1.48 for Microsoft Dynamics CRM on-premises 9.1 Introduction Service Update 9.1.48 for Microsoft Dynamics CRM on-premises 9.1 is now available. This article describes the hotfixes and updates that are included in Service Update 9.1.0048.0004. More information Update package | Versi...

KB5122874: Servicing stack update for Windows 10, version 1607 and Windows Server 2016: September 8, 2026

KB5122874: Servicing stack update for Windows 10, version 1607 and Windows Server 2016: September 8, 2026 Applies To Win 10 Ent LTSB 2016 Win 10 IoT Ent LTSB 2016 Windows Server 2016, all editions Important Free support for Windows 10 Enterprise 2016 LTSB and Windows Server 2016 will soon end. Fo...

Description of Security Update 3 for Microsoft Skype for Business Server 2015 CU13: September 8, 2026 (KB5123301)

Description of Security Update 3 for Microsoft Skype for Business Server 2015 CU13: September 8, 2026 KB5123301 Applies To Skype for Business Server 2015 Summary This cumulative update resolves vulnerabilities in Microsoft Skype for Business Server 2015. To learn more about these vulnerabilities,...

KB5122775 - Description of the security update for SQL Server 2017 GDR: September 8, 2026

KB5122775 - Description of the security update for SQL Server 2017 GDR: September 8, 2026 Applies To SQL Server 2017 on Windows SQL Server 2017 on Linux Release date: September 8, 2026 Version: 14.0.2130.4 Summary Known issues in this update Improvements and fixes included in this update How to...

Description of the security update for Microsoft Exchange Server 2016 CU23: September 8, 2026 (KB5121611)

Description of the security update for Microsoft Exchange Server 2016 CU23: September 8, 2026 KB5121611 Applies To Exchange Server 2016 This security update resolves vulnerabilities in Microsoft Exchange Server. To learn more about these vulnerabilities, see the following Common Vulnerabilities a...

Description of the security update for Microsoft Exchange Server 2019 CU14: September 8, 2026 (KB5121610)

Description of the security update for Microsoft Exchange Server 2019 CU14: September 8, 2026 KB5121610 Applies To Exchange Server 2019 This security update resolves vulnerabilities in Microsoft Exchange Server. To learn more about these vulnerabilities, see the following Common Vulnerabilities a...

KB5122770 - Description of the security update for SQL Server 2025 GDR: September 8, 2026

KB5122770 - Description of the security update for SQL Server 2025 GDR: September 8, 2026 Applies To SQL Server 2025 on Windows all editions, SQL Server 2025 on Linux all editions Release date: September 8, 2026 Version: 17.0.1135.8 Summary Known issues in this update Improvements and fixes...

KB5122769 - Description of the security update for SQL Server 2025 CU8: September 8, 2026

KB5122769 - Description of the security update for SQL Server 2025 CU8: September 8, 2026 Applies To SQL Server 2025 on Windows all editions, SQL Server 2025 on Linux all editions Release date: September 8, 2026 Version: 17.0.4085.5 Summary Known issues in this update Improvements and fixes...

KB5122774 - Description of the security update for SQL Server 2017 CU31: September 8, 2026

KB5122774 - Description of the security update for SQL Server 2017 CU31: September 8, 2026 Applies To SQL Server 2017 on Linux SQL Server 2017 on Windows Release date: September 8, 2026 Version: 14.0.3550.4 Summary Known issues in this update Improvements and fixes included in this update How to...

KB5122773 - Description of the security update for SQL Server 2019 GDR: September 8, 2026

KB5122773 - Description of the security update for SQL Server 2019 GDR: September 8, 2026 Applies To SQL Server 2019 on Windows SQL Server 2019 on Linux Release date: September 8, 2026 Version: 15.0.2190.7 Summary Known issues in this update Improvements and fixes included in this update How to...

KB5122772 - Description of the security update for SQL Server 2019 CU32: September 8, 2026

KB5122772 - Description of the security update for SQL Server 2019 CU32: September 8, 2026 Applies To SQL Server 2019 on Windows SQL Server 2019 on Linux Release date: September 8, 2026 Version: 15.0.4490.9 Summary Known issues in this update Improvements and fixes included in this update How to...

Description of the security update for Office 2016: September 08, 2026 (4011160)

Description of the security update for Office 2016: September 08, 2026 4011160 Applies To Office Professional Plus 2016 Office Professional 2016 Office Standard 2016 Office Home and Business 2016 Office Home and Student 2016 Summary This security update resolves Microsoft Office Excel Information...

September 8, 2026-Security and Quality Rollup for .NET Framework 4.6.2, 4.7, 4.7.1, 4.7.2 for Windows Server 2012 (KB5126044)

September 8, 2026-Security and Quality Rollup for .NET Framework 4.6.2, 4.7, 4.7.1, 4.7.2 for Windows Server 2012 KB5126044 Applies To .NET Note 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...

September 8, 2026-KB5126043 Cumulative Update for .NET Framework 3.5 and 4.7.2 for Windows 10, version 1809 and Windows Server 2019

September 8, 2026-KB5126043 Cumulative Update for .NET Framework 3.5 and 4.7.2 for Windows 10, version 1809 and Windows Server 2019 Applies To .NET Note Release Date: September 8, 2026 Version: .NET Framework 3.5 and 4.7.2 The September 8, 2026 update for Windows 10, version 1809 and Windows Serv...

Description of the security update for Visio 2016: September 08, 2026 (KB5002646)

Description of the security update for Visio 2016: September 08, 2026 KB5002646 Applies To Visio Professional 2016 Visio Standard 2016 Summary This security update resolves a Microsoft Office remote code execution vulnerability. To learn more about the vulnerability, see Microsoft Common...

Extended Security Updates (ESU) Licensing Preparation Package for Windows 10

Extended Security Updates ESU Licensing Preparation Package for Windows 10 Applies To Windows 10 ESU Original publish date: September 8, 2026 KB ID: 5126256 Introduction On October 14, 2025, support for Windows 10 ended. This means that Microsoft no longer provides security and feature updates or...

Remove specific prevalent malware with Windows Malicious Software Removal Tool (KB890830)

Remove specific prevalent malware with Windows Malicious Software Removal Tool KB890830 Applies To Windows Summary The Windows Malicious Software Removal Tool MSRT helps remove malicious software from computers that are running any of the following operating systems: Windows 11 Windows Server 202...

KB5123499: Servicing stack update for Windows Server 2012 R2: September 8, 2026

KB5123499: Servicing stack update for Windows Server 2012 R2: September 8, 2026 Applies To Windows Server 2012 R2 ESU Summary This update makes quality improvements to the servicing stack, which is the component that installs Windows updates. Servicing stack updates SSU makes sure that you have a...

KB5123602: Servicing stack update for Windows Server 2012: September 8, 2026

KB5123602: Servicing stack update for Windows Server 2012: September 8, 2026 Applies To Windows Server 2012 ESU Summary This update makes quality improvements to the servicing stack, which is the component that installs Windows updates. Servicing stack updates SSU makes sure that you have a robus...

Update Rollup 4 for System Center 2022 Operations Manager

Update Rollup 4 for System Center 2022 Operations Manager Applies To System Center 2022 Operations Manager Introduction This article describes the latest update for System Center Operations Manager 2022. This article also contains the installation instructions and describes the fixes, improvement...

Description of the security update for Office 2016: September 08, 2026 (KB5002917)

Description of the security update for Office 2016: September 08, 2026 KB5002917 Applies To Office Standard 2016 Office Professional 2016 Office Professional Plus 2016 Office Home and Business 2016 Office Home and Student 2016 Summary This security update resolves a Microsoft Office remote code...

Description of the security update for Office 2016: September 08, 2026 (KB5002915)

Description of the security update for Office 2016: September 08, 2026 KB5002915 Applies To Office Standard 2016 Office Professional 2016 Office Professional Plus 2016 Office Home and Business 2016 Office Home and Student 2016 Summary This security update resolves a Microsoft Office Remote Code...

Description of the security update for Office 2016: September 08, 2026 (KB5002918)

Description of the security update for Office 2016: September 08, 2026 KB5002918 Applies To Office Standard 2016 Office Professional 2016 Office Professional Plus 2016 Office Home and Business 2016 Office Home and Student 2016 Summary This security update resolves a Microsoft Office remote code...

Update Rollup 4 for System Center 2022 Orchestrator

Update Rollup 4 for System Center 2022 Orchestrator Applies To: System Center 2022 Orchestrator Introduction This article describes the issues that are fixed in Update Rollup 4 for Microsoft System Center Orchestrator 2022. This article also contains the installation instructions for this update...

Description of the security update for Word 2016: August 11, 2026 (KB5002901)

Description of the security update for Word 2016: August 11, 2026 KB5002901 Applies To Word 2016 Summary This security update resolves a Microsoft Word Remote Code Execution vulnerability and Microsoft Word Information Disclosure vulnerability. To learn more about the vulnerabilities, see the...

Azure File Sync Agent V23.1 - September 2026

Azure File Sync Agent V23.1 - September 2026 This article describes the improvements and issues that are fixed in the Azure File Sync Agent v23.1 release that is dated September 2026. Additionally, this article contains installation instructions for this release. Improvements and issues that are...

Microsoft Support

Microsoft Support What do you need help with today? Microsoft Copilot Microsoft 365 Outlook OneDrive Microsoft Teams Windows Surface devices Gaming Microsoft account Microsoft Store More Microsoft products Start your Copilot journey here New to Copilot? Start with Chat Ask a question, draft...

Windows 10 update history

Windows 10 update history Applies To Windows 10, version 1703, all editions Updates for Windows 10 version 1703 Windows 10 is a service, which means it gets better through periodic software updates. The great news is you usually don’t have to do anything! If you have enabled automatic updates, ne...

Update Rollup 2 for Microsoft Azure Backup Server V4

Update Rollup 2 for Microsoft Azure Backup Server V4 Applies to: Microsoft Azure Backup Server V4 Introduction This article describes the issues that are fixed in Update Rollup 2 for Microsoft Azure Backup Server V4 MABS V4. This article also contains the installation instructions for this update...

KB5104822 - Cumulative Update 8 for SQL Server 2025

KB5104822 - Cumulative Update 8 for SQL Server 2025 Release Date: August 13, 2026 Version: 17.0.4075.5 Summary This article describes Cumulative Update 8 CU8 for Microsoft SQL Server 2025. This update package contains 11 fixes that were issued after the release of SQL Server 2025 Cumulative Updat...

August 27, 2026—KB5120998 (OS Builds 26200.9278 and 26100.9278) Preview

August 27, 2026—KB5120998 OS Builds 26200.9278 and 26100.9278 Preview Applies To Windows 11 version 25H2, all editions Windows 11 version 24H2, all editions This cumulative update for Windows 11, version 25H2 and 24H2 KB5120998, includes production-quality improvements. Announcements and messages...

August 27, 2026—KB5120996 (OS Build 28000.2804) Preview

August 27, 2026—KB5120996 OS Build 28000.2804 Preview Applies To Windows 11 version 26H1, all editions This cumulative update for Windows 11, version 26H1 KB5120996, includes production-quality improvements. Announcements and messages This section provides key notifications related to this releas...

Security update 2026-08-11

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Description of the security update for Office 2016: August 11, 2026 (KB5002900)

Description of the security update for Office 2016: August 11, 2026 KB5002900 Applies To Office Standard 2016 Office Professional 2016 Office Professional Plus 2016 Office Home and Business 2016 Office Home and Student 2016 Summary This security update resolves a Microsoft Office Remote Code...

August 11, 2026-KB5120714 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows Server 2022

August 11, 2026-KB5120714 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows Server 2022 Applies To .NET Note Revised October 15th, 2026: Add status update to known issue section. Note Release Date: August 11, 2026 Version: .NET Framework 3.5 and 4.8.1 The August 11, 2026 update for...

Description of the security update for PowerPoint 2016: August 11, 2026 (KB5002899)

Description of the security update for PowerPoint 2016: August 11, 2026 KB5002899 Applies To PowerPoint 2016 Summary This security update resolves a Powerpoint Information Disclosure vulnerability. To learn more about the vulnerability, see Microsoft Common Vulnerabilities and Exposures...

Description of the security update for Office 2016: August 11, 2026 (KB5002897)

Description of the security update for Office 2016: August 11, 2026 KB5002897 Applies To Office Professional Plus 2016 Office Professional 2016 Office Standard 2016 Office Home and Business 2016 Office Home and Student 2016 Summary This security update resolves a Microsoft Office remote code...

Description of the security update for SharePoint Server 2019 Language Pack: August 11, 2026 (KB5002896)

Description of the security update for SharePoint Server 2019 Language Pack: August 11, 2026 KB5002896 Applies To SharePoint Server 2019 Summary Important If you're running Microsoft SharePoint Server 2013-type workflows, you must install the August 2025 update for SharePoint Workflow Manager to...

Description of the security update for Office Online Server: July 14, 2026 (KB5002884)

Description of the security update for Office Online Server: July 14, 2026 KB5002884 Applies To Office Online Server Summary This security update resolves Microsoft Excel remote code execution vulnerability and Microsoft Excel Information Disclosure vulnerability. To learn more about the...

Description of the security update for Excel 2016: August 11, 2026 (KB5002903)

Description of the security update for Excel 2016: August 11, 2026 KB5002903 Applies To Excel 2016 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...

Description of the security update for Office 2016: August 11, 2026 (KB5002902)

Description of the security update for Office 2016: August 11, 2026 KB5002902 Applies To Office Standard 2016 Office Professional 2016 Office Professional Plus 2016 Office Home and Business 2016 Office Home and Student 2016 Summary This security update resolves a Microsoft Office Remote Code...

Description of the security update for SharePoint Server 2016: August 11, 2026 (KB5002905)

Description of the security update for SharePoint Server 2016: August 11, 2026 KB5002905 Applies To SharePoint Server 2016 Summary Important If you're currently running SharePoint Workflow Manager, you must install the SharePoint Workflow Manager KB5002799 to your farm before you install this...