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KB5101649BMonthly security release (Patch Tuesday) · 2026-07 B

Monthly security release (Patch Tuesday) for Windows 11, version 26H1

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

Is it safe to deploy?

SupersededKB5101649B

Deploy KB5132059 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
1Windows version
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 11, version 26H1 28000.2525 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 11, version 26H1 → Windows 11, version 26H1, Windows 11 Version 26H1 for ARM64-based Systems, Windows 11 version 26H1 for x64-based Systems
Page history

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Cite this version
Field-level log (43)

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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-11-releasesIncomplete → Current
  12. 6 Nov 2026 · 16:31:02 UTC Known issues resolvedNone in the collected release health data → Unknown: known-issue evidence is incomplete or retained
  13. 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
  14. 6 Nov 2026 · 16:31:02 UTC Source coverage: windows-known-issuesCurrent → Incomplete
  15. 6 Nov 2026 · 16:31:02 UTC Source coverage: msrc-cvrfCurrent → Incomplete
  16. 6 Nov 2026 · 16:31:02 UTC Source coverage: windows-11-releasesCurrent → Incomplete
  17. 5 Nov 2026 · 23:42:03 UTC Known issues resolvedUnknown: known-issue evidence is incomplete or retained → None in the collected release health data
  18. 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
  19. 5 Nov 2026 · 23:42:03 UTC Source coverage: windows-known-issuesIncomplete → Current
  20. 5 Nov 2026 · 23:42:03 UTC Source coverage: windows-11-releasesIncomplete → Current
  21. 5 Nov 2026 · 22:41:52 UTC Known issues resolvedNone in the collected release health data → Unknown: known-issue evidence is incomplete or retained
  22. 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
  23. 5 Nov 2026 · 22:41:52 UTC Source coverage: windows-known-issuesCurrent → Incomplete
  24. 5 Nov 2026 · 22:41:52 UTC Source coverage: windows-11-releasesCurrent → Incomplete
  25. 2 Nov 2026 · 17:30:39 UTC Source coverage: msrc-cvrfIncomplete → Current
  26. 2 Nov 2026 · 16:27:39 UTC Source coverage: msrc-cvrfCurrent → Incomplete
  27. 29 Oct 2026 · 20:19:26 UTC Known issues affecting this updateNone in the collected release health data
  28. 23 Oct 2026 · 09:33:49 UTC Known issues resolvedUnknown: known-issue evidence is incomplete or retained → None in the collected release health data
  29. 23 Oct 2026 · 09:33:49 UTC Known issues causedUnknown: known-issue evidence is incomplete or retained → None in the collected release health data
  30. 23 Oct 2026 · 09:33:49 UTC Source coverage: windows-known-issuesIncomplete → Current
  31. 23 Oct 2026 · 09:33:49 UTC Source coverage: msrc-cvrfIncomplete → Current
  32. 23 Oct 2026 · 09:33:49 UTC Source coverage: windows-11-releasesIncomplete → Current
  33. 23 Oct 2026 · 08:31:50 UTC Known issues resolvedNone in the collected release health data → Unknown: known-issue evidence is incomplete or retained
  34. 23 Oct 2026 · 08:31:50 UTC Known issues causedNone in the collected release health data → Unknown: known-issue evidence is incomplete or retained
  35. 23 Oct 2026 · 08:31:50 UTC Source coverage: windows-known-issuesCurrent → Incomplete
  36. 23 Oct 2026 · 08:31:50 UTC Source coverage: msrc-cvrfCurrent → Incomplete
  37. 23 Oct 2026 · 08:31:50 UTC Source coverage: windows-11-releasesCurrent → Incomplete
  38. 14 Oct 2026 · 11:22:42 UTC CVEs listed directly for this KBUnknown: security evidence or the required release is incomplete → CVE-2026-59116
  39. 14 Oct 2026 · 11:22:42 UTC CVEs fixedUnknown: security evidence or the required release is incomplete → CVE-2026-59116
  40. 14 Oct 2026 · 11:22:42 UTC Restart requiredNot stated in collected security fixes → Yes
  41. 14 Oct 2026 · 11:22:42 UTC Applies toWindows 11, version 26H1 → Windows 11, version 26H1, Windows 11 Version 26H1 for ARM64-based Systems, Windows 11 version 26H1 for x64-based Systems
  42. 14 Oct 2026 · 11:22:42 UTC Source coverage: msrc-cvrfIncomplete → Current
  43. 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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