Microsoft Patch Tuesday, March 2026
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Microsoft's March 2026 security release, published March 10, 2026: 39 updates fixing 61 CVEs, ranked by confirmed exploitation, ransomware use, and severity. Provided by Senserva.
Actively exploited CVEs (CISA KEV)
None of this month's CVEs were in the CISA Known Exploited Vulnerabilities catalog as of the last refresh.
Other high-risk CVEs (CVSS 8.8+)
Products fixed this month
Every update in this release
All 38 update articles, worst first: anything on the CISA KEV list, then by highest CVSS. Each row links our page for the update, Microsoft's support article, and the Update Catalog for a standalone download.
| Update | Severity | Max CVSS | CVEs fixed | Products | Also |
|---|---|---|---|---|---|
| KB5078752 | High | 8.8 | 40 | Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019 | Support · Catalog |
| KB5078885 | High | 8.8 | 43 | Windows 10 Version 21H2 for 32-bit Systems, Windows 10 Version 21H2 for ARM64-based Systems, Windows 10 Version 21H2 for x64-based Systems | Support · Catalog |
| KB5079473 | High | 8.8 | 41 | Windows 11 Version 25H2 for ARM64-based Systems, Windows 11 Version 25H2 for x64-based Systems, Windows 11 Version 24H2 for ARM64-based Systems | Support · Catalog |
| KB5079420 | High | 8.8 | 38 | Windows 11 Version 25H2 for ARM64-based Systems, Windows 11 Version 25H2 for x64-based Systems, Windows 11 Version 24H2 for ARM64-based Systems | Support · Catalog |
| KB5078883 | High | 8.8 | 41 | Windows 11 Version 23H2 for ARM64-based Systems, Windows 11 Version 23H2 for x64-based Systems | Support · Catalog |
| KB5079466 | High | 8.8 | 40 | Windows 11 Version 26H1 for ARM64-based Systems, Windows 11 version 26H1 for x64-based Systems | Support · Catalog |
| KB5078766 | High | 8.8 | 40 | Windows Server 2022, Windows Server 2022 (Server Core installation) | Support · Catalog |
| KB5078734 | High | 8.8 | 40 | Windows Server 2022, 23H2 Edition (Server Core installation) | Support · Catalog |
| KB5078938 | High | 8.8 | 35 | Windows 10 Version 1607 for 32-bit Systems, Windows 10 Version 1607 for x64-based Systems, Windows Server 2016 | Support · Catalog |
| KB5078775 | High | 8.8 | 31 | Windows Server 2012, Windows Server 2012 (Server Core installation) | Support · Catalog |
| KB5078774 | High | 8.8 | 32 | Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation) | Support · Catalog |
| KB5078740 | High | 8.8 | 39 | Windows Server 2025 (Server Core installation), Windows Server 2025 | Support · Catalog |
| KB5078736 | High | 8.8 | 39 | Windows Server 2025 (Server Core installation), Windows Server 2025 | Support · Catalog |
| KB5002850 | High | 8.8 | 4 | Microsoft SharePoint Enterprise Server 2016 | Support · Catalog |
| KB5002845 | High | 8.8 | 4 | Microsoft SharePoint Server 2019 | Support · Catalog |
| KB5077472 | High | 8.8 | 2 | Microsoft SQL Server 2017 for x64-based Systems (GDR) | Support · Catalog |
| KB5077470 | High | 8.8 | 2 | Microsoft SQL Server 2019 for x64-based Systems (GDR) | Support · Catalog |
| KB5077474 | High | 8.8 | 2 | Microsoft SQL Server 2016 for x64-based Systems Service Pack 3 (GDR) | Support · Catalog |
| KB5077471 | High | 8.8 | 2 | Microsoft SQL Server 2017 for x64-based Systems (CU 31) | Support · Catalog |
| KB5077473 | High | 8.8 | 2 | Microsoft SQL Server 2016 for x64-based Systems Service Pack 3 Azure Connect Feature Pack | Support · Catalog |
| KB5077465 | High | 8.8 | 2 | Microsoft SQL Server 2022 for x64-based Systems (GDR) | Support · Catalog |
| KB5077468 | High | 8.8 | 3 | Microsoft SQL Server 2025 for x64-based Systems (GDR) | Support · Catalog |
| KB5077469 | High | 8.8 | 2 | Microsoft SQL Server 2019 for x64-based Systems (CU 32) | Support · Catalog |
| KB5077464 | High | 8.8 | 2 | Microsoft SQL Server 2022 for x64-based Systems (CU 23) | Support · Catalog |
| KB5077466 | High | 8.8 | 3 | Microsoft SQL Server 2025 for x64-based Systems (CU2) | Support · Catalog |
| KB5002843 | High | 8.8 | 3 | Microsoft SharePoint Server Subscription Edition | Support · Catalog |
| KB5002846 | High | 8.4 | 4 | Office Online Server | Support · Catalog |
| KB5002849 | High | 8.4 | 4 | Microsoft Excel 2016 (32-bit edition), Microsoft Excel 2016 (64-bit edition) | Support · Catalog |
| KB5002851 | High | 8.4 | 1 | Microsoft SharePoint Enterprise Server 2016 | Support · Catalog |
| KB5002847 | High | 8.4 | 1 | Microsoft SharePoint Server 2019 | Support · Catalog |
| KB5002848 | High | 8.4 | 1 | Microsoft Office 2016 (32-bit edition), Microsoft Office 2016 (64-bit edition) | Support · Catalog |
| KB5002838 | High | 8.4 | 1 | Microsoft Office 2016 (32-bit edition), Microsoft Office 2016 (64-bit edition) | Support · Catalog |
| KB5084597 | High | 8.0 | 3 | Windows 11 Version 25H2 for ARM64-based Systems, Windows 11 Version 24H2 for x64-based Systems, Windows 11 Version 25H2 for x64-based Systems | Support · Catalog |
| KB5081276 | High | 7.8 | 3 | .NET 10.0 installed on Windows, .NET 10.0 installed on Mac OS, .NET 10.0 installed on Linux | Support · Catalog |
| KB5002718 | High | 7.8 | 1 | Microsoft Excel 2016 (32-bit edition), Microsoft Excel 2016 (64-bit edition) | Support · Catalog |
| KB5081278 | High | 7.5 | 2 | .NET 9.0 installed on Linux, .NET 9.0 installed on Mac OS, .NET 9.0 installed on Windows | Support · Catalog |
| KB5081277 | High | 7.5 | 1 | ASP.NET Core 8.0 | Support · Catalog |
| KB5078738 | High | 7.5 | 1 | Windows Server 2012, Windows Server 2012 (Server Core installation), Windows Server 2012 R2 | Support · Catalog |
Composed from the March 2026 release data above. Copy it into Claude, ChatGPT, or Copilot. Free, no sign-in.
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