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KB5126047

.NET Framework 4.8 for Windows 10, version 1607 and Windows Server 2016

Support article Update Catalog CVEs in Security CVE list for a ticket

.NET Framework servicing update

Microsoft Support

Framework servicing is separate from the Windows OS update. Microsoft's article provides applicability and security fixes; test the framework versions installed on your servers.

Applies to

Windows 10, version 1607Windows Server 2016
Security improvements · 2 CVEs named by Microsoft
CVE-2026-62886CVE-2026-69522

Source: Microsoft Support · 8 Sep 2026

Companion updates for this Windows version

Same patch cycle

Windows and .NET Framework are serviced separately. These packages target the same Windows version; choose the framework packages that apply to your installation.

8 Sep 2026

Companion updates do not replace this KB or establish an installation prerequisite.

1CVEs fixed · 0 critical
0Exploited or in CISA KEV

Security fixes

1 Microsoft CVE · most urgent first
CVE Vulnerability Severity CVSSEPSSImpact Status
CVE-2026-69522 .NET and Visual Studio Remote Code Execution VulnerabilityVisual Studio Important 8.80.8%RCENetwork Revised 29 Sep

What changed

  1. Security fixes updated · Applies to: Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for 32-bit Systems, Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems, Microsoft .NET Framework 4.8 on Windows Server 2016 → Windows 10, version 1607; Windows Server 2016
Page history

Changes are dated when recorded; day views use the last saved version from that UTC day, and citations stay fixed.

Cite this version
Field-level log (43)

Up to 100 recent field edits are shown; older edits may be outside retention.

  1. 11 Nov 2026 · 08:57:52 UTC Source coverage: dotnet-framework-updatesIncomplete → Current
  2. 10 Nov 2026 · 19:45:11 UTC Source coverage: dotnet-framework-updatesCurrent → Incomplete
  3. 10 Nov 2026 · 13:44:31 UTC Source coverage: dotnet-framework-updatesIncomplete → Current
  4. 7 Nov 2026 · 20:56:39 UTC Source coverage: dotnet-framework-updatesCurrent → Incomplete
  5. 7 Nov 2026 · 14:28:07 UTC Source coverage: dotnet-framework-updatesIncomplete → Current
  6. 7 Nov 2026 · 07:55:21 UTC Source coverage: dotnet-framework-updatesCurrent → Incomplete
  7. 7 Nov 2026 · 01:38:20 UTC Source coverage: dotnet-framework-updatesIncomplete → Current
  8. 6 Nov 2026 · 17:32:22 UTC Source coverage: msrc-cvrfIncomplete → Current
  9. 6 Nov 2026 · 16:31:02 UTC Source coverage: msrc-cvrfCurrent → Incomplete
  10. 4 Nov 2026 · 17:09:02 UTC Source coverage: dotnet-framework-updatesCurrent → Incomplete
  11. 4 Nov 2026 · 11:04:04 UTC Source coverage: dotnet-framework-updatesIncomplete → Current
  12. 3 Nov 2026 · 15:31:39 UTC Source coverage: dotnet-framework-updatesCurrent → Incomplete
  13. 3 Nov 2026 · 09:13:39 UTC Source coverage: dotnet-framework-updatesIncomplete → Current
  14. 2 Nov 2026 · 17:30:39 UTC Source coverage: msrc-cvrfIncomplete → Current
  15. 2 Nov 2026 · 16:27:39 UTC Source coverage: msrc-cvrfCurrent → Incomplete
  16. 2 Nov 2026 · 14:20:43 UTC Source coverage: dotnet-framework-updatesCurrent → Incomplete
  17. 2 Nov 2026 · 08:01:34 UTC Source coverage: dotnet-framework-updatesIncomplete → Current
  18. 30 Oct 2026 · 16:59:46 UTC Source coverage: dotnet-framework-updatesCurrent → Incomplete
  19. 30 Oct 2026 · 10:28:10 UTC Source coverage: dotnet-framework-updatesIncomplete → Current
  20. 30 Oct 2026 · 04:11:14 UTC Source coverage: dotnet-framework-updatesCurrent → Incomplete
  21. 29 Oct 2026 · 21:53:13 UTC Source coverage: dotnet-framework-updatesIncomplete → Current
  22. 29 Oct 2026 · 15:26:56 UTC Source coverage: dotnet-framework-updatesCurrent → Incomplete
  23. 29 Oct 2026 · 11:09:34 UTC Source coverage: dotnet-framework-updatesIncomplete → Current
  24. 27 Oct 2026 · 12:20:40 UTC Source coverage: dotnet-framework-updatesCurrent → Incomplete
  25. 27 Oct 2026 · 05:37:25 UTC Source coverage: dotnet-framework-updatesIncomplete → Current
  26. 26 Oct 2026 · 22:55:57 UTC Source coverage: dotnet-framework-updatesCurrent → Incomplete
  27. 26 Oct 2026 · 16:46:58 UTC Source coverage: dotnet-framework-updatesIncomplete → Current
  28. 23 Oct 2026 · 09:33:49 UTC Source coverage: msrc-cvrfIncomplete → Current
  29. 23 Oct 2026 · 08:31:50 UTC Source coverage: msrc-cvrfCurrent → Incomplete
  30. 21 Oct 2026 · 10:34:24 UTC Source coverage: dotnet-framework-updatesCurrent → Incomplete
  31. 21 Oct 2026 · 04:01:31 UTC Source coverage: dotnet-framework-updatesIncomplete → Current
  32. 19 Oct 2026 · 15:12:40 UTC ReadinessThis is a .NET Framework servicing update, not a Windows OS build. Review Microsoft's support article and test the applicable framework versions; OS release-health coverage does not establish this update's deployment readiness.
  33. 19 Oct 2026 · 15:12:40 UTC CVEs named by MicrosoftCVE-2026-62886, CVE-2026-69522
  34. 19 Oct 2026 · 15:12:40 UTC Related KBs
  35. 19 Oct 2026 · 15:12:40 UTC Applies toMicrosoft .NET Framework 4.8 on Windows 10 Version 1607 for 32-bit Systems, Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems, Microsoft .NET Framework 4.8 on Windows Server 2016 → Windows 10, version 1607; Windows Server 2016
  36. 19 Oct 2026 · 15:12:40 UTC Source coverage: windows-known-issuesCurrent → Not collected
  37. 19 Oct 2026 · 15:12:40 UTC Source coverage: dotnet-framework-updatesIncomplete
  38. 19 Oct 2026 · 15:12:40 UTC Link: Support articlehttps://support.microsoft.com/help/5126047 → https://support.microsoft.com/en-us/servicing/dotnetframework/windows-10/1607/2026/09/september-8-2026-kb5126047-cumulative-update-for-net-framework-4-8-for-windows-10-version-1607-and-w
  39. 19 Oct 2026 · 15:12:40 UTC SourceMicrosoft release information, MSRC and Windows release health → Microsoft Learn and Support
  40. 19 Oct 2026 · 15:12:40 UTC KindWindows update → .NET Framework update
  41. 19 Oct 2026 · 15:12:40 UTC SummarySecurity update fixing 2 collected CVEs. → September 8, 2026-KB5126047 Cumulative Update for .NET Framework 4.8 for Windows 10, version 1607 and Windows Server 2016
  42. 14 Oct 2026 · 11:22:42 UTC Missing security releaseUnknown: security evidence is incomplete or retained → None identified in collected security coverage
  43. 14 Oct 2026 · 11:22:42 UTC Source coverage: msrc-cvrfIncomplete → Current
ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 11 Nov 15:16 UTC · 274 of 275 readable · 273 fully read · documentation 469/469 current

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