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KB5099535BMonthly security release (Patch Tuesday) · 2026-07 B

Monthly security release (Patch Tuesday) for Windows 10, version 1607 and Windows Server 2016

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

Is it safe to deploy?

SupersededKB5099535B

Deploy KB5131291 instead; it includes these fixes.

ChangeIntel's reading of public signals, not advice; check Microsoft's guidance and test before you deploy. Terms

Urgency Unknown · MSRC document not collected Risk Moderate
Everything in the July 2026 Patch Tuesday cycle
2Windows versions
1CVEs fixed · 0 critical
0Exploited or in CISA KEV
YesRestart required (per MSRC)

No known issues affecting this update, or resolved by it, were identified in the collected Windows release health data.

Applies to

From Microsoft's release-information tables
Servicing branchOS buildReleaseAvailable
Windows 10, version 1607 14393.9339 B 2026-07 B 14 Jul 2026
Windows Server 2016 14393.9339 B 2026-07 B 14 Jul 2026

Security fixes

1 Microsoft CVE · most urgent first
CVE Vulnerability Severity CVSSEPSSImpact Status
CVE-2026-59116 Windows Remote Desktop Security Feature Bypass VulnerabilityWindows Remote Desktop Important 6.80.4%SFBNetwork

What changed

  1. Issues resolved: Unknown: known-issue evidence is incomplete or retained → None in the collected release health data · Known issues: Unknown: known-issue evidence is incomplete or retained → None in the collected release health data
  2. Issues resolved: None in the collected release health data → Unknown: known-issue evidence is incomplete or retained · Known issues: None in the collected release health data → Unknown: known-issue evidence is incomplete or retained
  3. Issues resolved: Unknown: known-issue evidence is incomplete or retained → None in the collected release health data · Known issues: Unknown: known-issue evidence is incomplete or retained → None in the collected release health data
  4. Issues resolved: None in the collected release health data → Unknown: known-issue evidence is incomplete or retained · Known issues: None in the collected release health data → Unknown: known-issue evidence is incomplete or retained
  5. Issues resolved: Unknown: known-issue evidence is incomplete or retained → None in the collected release health data · Known issues: Unknown: known-issue evidence is incomplete or retained → None in the collected release health data
  6. Issues resolved: None in the collected release health data → Unknown: known-issue evidence is incomplete or retained · Known issues: None in the collected release health data → Unknown: known-issue evidence is incomplete or retained
  7. Known issues: None in the collected release health data
  8. Issues resolved: Unknown: known-issue evidence is incomplete or retained → None in the collected release health data · Known issues: Unknown: known-issue evidence is incomplete or retained → None in the collected release health data
  9. Issues resolved: None in the collected release health data → Unknown: known-issue evidence is incomplete or retained · Known issues: None in the collected release health data → Unknown: known-issue evidence is incomplete or retained
  10. Restart required: Not stated in collected security fixes → Yes · Applies to: Windows 10, version 1607, Windows Server 2016 → Windows 10, version 1607, Windows Server 2016, Windows 10 Version 1607 for 32-bit Systems, Windows 10 Version 1607 for x64-based Systems, Windows Server 2016 (Server Core installation)
Page history

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Cite this version
Field-level log (53)

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  1. 7 Nov 2026 · 13:11:22 UTC Known issues resolvedUnknown: known-issue evidence is incomplete or retained → None in the collected release health data
  2. 7 Nov 2026 · 13:11:22 UTC Known issues affecting this updateUnknown: known-issue evidence is incomplete or retained → None in the collected release health data
  3. 7 Nov 2026 · 13:11:22 UTC Source coverage: windows-known-issuesIncomplete → Current
  4. 7 Nov 2026 · 12:08:21 UTC Known issues resolvedNone in the collected release health data → Unknown: known-issue evidence is incomplete or retained
  5. 7 Nov 2026 · 12:08:21 UTC Known issues affecting this updateNone in the collected release health data → Unknown: known-issue evidence is incomplete or retained
  6. 7 Nov 2026 · 12:08:21 UTC Source coverage: windows-known-issuesCurrent → Incomplete
  7. 6 Nov 2026 · 17:32:22 UTC Known issues resolvedUnknown: known-issue evidence is incomplete or retained → None in the collected release health data
  8. 6 Nov 2026 · 17:32:22 UTC Known issues affecting this updateUnknown: known-issue evidence is incomplete or retained → None in the collected release health data
  9. 6 Nov 2026 · 17:32:22 UTC Source coverage: windows-known-issuesIncomplete → Current
  10. 6 Nov 2026 · 17:32:22 UTC Source coverage: msrc-cvrfIncomplete → Current
  11. 6 Nov 2026 · 17:32:22 UTC Source coverage: windows-server-releasesIncomplete → Current
  12. 6 Nov 2026 · 17:32:22 UTC Source coverage: windows-10-releasesIncomplete → Current
  13. 6 Nov 2026 · 16:31:02 UTC Known issues resolvedNone in the collected release health data → Unknown: known-issue evidence is incomplete or retained
  14. 6 Nov 2026 · 16:31:02 UTC Known issues affecting this updateNone in the collected release health data → Unknown: known-issue evidence is incomplete or retained
  15. 6 Nov 2026 · 16:31:02 UTC Source coverage: windows-known-issuesCurrent → Incomplete
  16. 6 Nov 2026 · 16:31:02 UTC Source coverage: msrc-cvrfCurrent → Incomplete
  17. 6 Nov 2026 · 16:31:02 UTC Source coverage: windows-server-releasesCurrent → Incomplete
  18. 6 Nov 2026 · 16:31:02 UTC Source coverage: windows-10-releasesCurrent → Incomplete
  19. 5 Nov 2026 · 23:42:03 UTC Known issues resolvedUnknown: known-issue evidence is incomplete or retained → None in the collected release health data
  20. 5 Nov 2026 · 23:42:03 UTC Known issues affecting this updateUnknown: known-issue evidence is incomplete or retained → None in the collected release health data
  21. 5 Nov 2026 · 23:42:03 UTC Source coverage: windows-known-issuesIncomplete → Current
  22. 5 Nov 2026 · 23:42:03 UTC Source coverage: windows-server-releasesIncomplete → Current
  23. 5 Nov 2026 · 23:42:03 UTC Source coverage: windows-10-releasesIncomplete → Current
  24. 5 Nov 2026 · 22:41:52 UTC Known issues resolvedNone in the collected release health data → Unknown: known-issue evidence is incomplete or retained
  25. 5 Nov 2026 · 22:41:52 UTC Known issues affecting this updateNone in the collected release health data → Unknown: known-issue evidence is incomplete or retained
  26. 5 Nov 2026 · 22:41:52 UTC Source coverage: windows-known-issuesCurrent → Incomplete
  27. 5 Nov 2026 · 22:41:52 UTC Source coverage: windows-server-releasesCurrent → Incomplete
  28. 5 Nov 2026 · 22:41:52 UTC Source coverage: windows-10-releasesCurrent → Incomplete
  29. 2 Nov 2026 · 17:30:39 UTC Source coverage: msrc-cvrfIncomplete → Current
  30. 2 Nov 2026 · 16:27:39 UTC Source coverage: msrc-cvrfCurrent → Incomplete
  31. 29 Oct 2026 · 20:19:26 UTC Known issues affecting this updateNone in the collected release health data
  32. 28 Oct 2026 · 13:54:09 UTC Source coverage: windows-server-releasesIncomplete → Current
  33. 28 Oct 2026 · 13:54:09 UTC Source coverage: windows-10-releasesIncomplete → Current
  34. 28 Oct 2026 · 08:37:56 UTC Source coverage: windows-server-releasesCurrent → Incomplete
  35. 28 Oct 2026 · 08:37:56 UTC Source coverage: windows-10-releasesCurrent → Incomplete
  36. 23 Oct 2026 · 09:33:49 UTC Known issues resolvedUnknown: known-issue evidence is incomplete or retained → None in the collected release health data
  37. 23 Oct 2026 · 09:33:49 UTC Known issues causedUnknown: known-issue evidence is incomplete or retained → None in the collected release health data
  38. 23 Oct 2026 · 09:33:49 UTC Source coverage: windows-known-issuesIncomplete → Current
  39. 23 Oct 2026 · 09:33:49 UTC Source coverage: msrc-cvrfIncomplete → Current
  40. 23 Oct 2026 · 09:33:49 UTC Source coverage: windows-server-releasesIncomplete → Current
  41. 23 Oct 2026 · 09:33:49 UTC Source coverage: windows-10-releasesIncomplete → Current
  42. 23 Oct 2026 · 08:31:50 UTC Known issues resolvedNone in the collected release health data → Unknown: known-issue evidence is incomplete or retained
  43. 23 Oct 2026 · 08:31:50 UTC Known issues causedNone in the collected release health data → Unknown: known-issue evidence is incomplete or retained
  44. 23 Oct 2026 · 08:31:50 UTC Source coverage: windows-known-issuesCurrent → Incomplete
  45. 23 Oct 2026 · 08:31:50 UTC Source coverage: msrc-cvrfCurrent → Incomplete
  46. 23 Oct 2026 · 08:31:50 UTC Source coverage: windows-server-releasesCurrent → Incomplete
  47. 23 Oct 2026 · 08:31:50 UTC Source coverage: windows-10-releasesCurrent → Incomplete
  48. 14 Oct 2026 · 11:22:42 UTC CVEs listed directly for this KBUnknown: security evidence or the required release is incomplete → CVE-2026-59116
  49. 14 Oct 2026 · 11:22:42 UTC CVEs fixedUnknown: security evidence or the required release is incomplete → CVE-2026-59116
  50. 14 Oct 2026 · 11:22:42 UTC Restart requiredNot stated in collected security fixes → Yes
  51. 14 Oct 2026 · 11:22:42 UTC Applies toWindows 10, version 1607, Windows Server 2016 → Windows 10, version 1607, Windows Server 2016, Windows 10 Version 1607 for 32-bit Systems, Windows 10 Version 1607 for x64-based Systems, Windows Server 2016 (Server Core installation)
  52. 14 Oct 2026 · 11:22:42 UTC Source coverage: msrc-cvrfIncomplete → Current
  53. 14 Oct 2026 · 11:22:42 UTC Link: CVE-2026-59116/security/cve/CVE-2026-59116
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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