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.NET Framework 3.5 for Windows Server 2012 R2 (KB5120695)

.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

Related packages

Security improvements · 6 CVEs named by Microsoft

Source: Microsoft Support · 8 Sep 2026

MSRC lists no CVEs under this KB in the collected releases.

What changed

  1. Security fixes updated · Applies to: Microsoft .NET Framework 3.5 on Windows Server 2012 R2, Microsoft .NET Framework 3.5 on Windows Server 2012 R2 (Server Core installation) → Windows Server 2012 R2
Page history

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Cite this version
Field-level log (49)

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-2026-65810, CVE-2026-62872, CVE-2026-62886, CVE-2026-62897, CVE-2026-70354, CVE-2026-62902
  34. 19 Oct 2026 · 15:12:40 UTC Related KBsKB5126148
  35. 19 Oct 2026 · 15:12:40 UTC Applies toMicrosoft .NET Framework 3.5 on Windows Server 2012 R2, Microsoft .NET Framework 3.5 on Windows Server 2012 R2 (Server Core installation) → Windows Server 2012 R2
  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: CVE-2026-62902/security/cve/CVE-2026-62902
  39. 19 Oct 2026 · 15:12:40 UTC Link: CVE-2026-62897/security/cve/CVE-2026-62897
  40. 19 Oct 2026 · 15:12:40 UTC Link: KB5126148/windows/kb/KB5126148
  41. 19 Oct 2026 · 15:12:40 UTC Link: Support articlehttps://support.microsoft.com/help/5120695 → https://support.microsoft.com/en-us/servicing/dotnetframework/2026/08/august-11-2026-security-and-quality-rollup-for-net-framework-3-5-for-windows-server-2012-r2-kb512069
  42. 19 Oct 2026 · 15:12:40 UTC SourceMicrosoft release information, MSRC and Windows release health → Microsoft Learn and Support
  43. 19 Oct 2026 · 15:12:40 UTC KindWindows update → .NET Framework update
  44. 19 Oct 2026 · 15:12:40 UTC SummarySecurity update fixing 3 collected CVEs. → September 8, 2026-Security and Quality Rollup for .NET Framework 3.5 for Windows Server 2012 R2 (KB5120695)
  45. 16 Oct 2026 · 15:49:54 UTC CVEs listed directly for this KBCVE-2026-62872, CVE-2026-62886, CVE-2026-65810, CVE-2026-70354 → CVE-2026-62872, CVE-2026-65810, CVE-2026-70354
  46. 16 Oct 2026 · 15:49:54 UTC CVEs fixedCVE-2026-62872, CVE-2026-62886, CVE-2026-65810, CVE-2026-70354 → CVE-2026-62872, CVE-2026-65810, CVE-2026-70354
  47. 16 Oct 2026 · 15:49:54 UTC SummarySecurity update fixing 4 collected CVEs. → Security update fixing 3 collected CVEs.
  48. 14 Oct 2026 · 11:22:42 UTC Missing security releaseUnknown: security evidence is incomplete or retained → None identified in collected security coverage
  49. 14 Oct 2026 · 11:22:42 UTC Source coverage: msrc-cvrfIncomplete → Current
ChangeIntel

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