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Recorded 28 Oct 2026 at 13:54 UTC. This is what ChangeIntel recorded, including the title, summary, facts and links. It is not a statement of the source's current position. See the latest record.

Windows updateMicrosoft release information, MSRC and Windows release health

KB5099538

Windows 10, version 1809: KB5099538 · 2026-07 B · OS build 17763.9020

What it said

KB
KB5099538
Windows versions and builds
Windows 10, version 1809: 17763.9020 (2026-07 B); Windows Server 2019: 17763.9020 (2026-07 B)
Applies to
Windows 10, version 1809, Windows Server 2019, Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019 (Server Core installation)
Restart required
Yes
CVEs fixed
CVE-2026-59116
Known issues caused
None in the collected release health data
Known issues resolved
None in the collected release health data
Included security update
None identified in the collected release tables
CVEs listed directly for this KB
CVE-2026-59116
Missing security release
July 2026
Published
14 Jul 2026 00:00 UTC

Source evidence when recorded

Windows 10 releases
Complete at observationRead 28 Oct 2026 at 13:52 UTC
Windows Server releases
Complete at observationRead 28 Oct 2026 at 13:52 UTC
Microsoft security releases
Complete at observationRead 28 Oct 2026 at 13:52 UTC
Windows known issues
Complete at observationRead 28 Oct 2026 at 13:52 UTC

Coverage describes the sources at this observation. A complete read then does not establish their current position.

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. Restart required: Not stated in collected security fixes → Yes · Applies to: Windows 10, version 1809, Windows Server 2019 → Windows 10, version 1809, Windows Server 2019, Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019 (Server Core installation)
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 (22)

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

  1. 28 Oct 2026 · 13:54:09 UTC Source coverage: windows-server-releasesIncomplete → Current
  2. 28 Oct 2026 · 13:54:09 UTC Source coverage: windows-10-releasesIncomplete → Current
  3. 28 Oct 2026 · 08:37:56 UTC Source coverage: windows-server-releasesCurrent → Incomplete
  4. 28 Oct 2026 · 08:37:56 UTC Source coverage: windows-10-releasesCurrent → Incomplete
  5. 23 Oct 2026 · 09:33:49 UTC Known issues resolvedUnknown: known-issue evidence is incomplete or retained → None in the collected release health data
  6. 23 Oct 2026 · 09:33:49 UTC Known issues causedUnknown: known-issue evidence is incomplete or retained → None in the collected release health data
  7. 23 Oct 2026 · 09:33:49 UTC Source coverage: windows-known-issuesIncomplete → Current
  8. 23 Oct 2026 · 09:33:49 UTC Source coverage: msrc-cvrfIncomplete → Current
  9. 23 Oct 2026 · 09:33:49 UTC Source coverage: windows-server-releasesIncomplete → Current
  10. 23 Oct 2026 · 09:33:49 UTC Source coverage: windows-10-releasesIncomplete → Current
  11. 23 Oct 2026 · 08:31:50 UTC Known issues resolvedNone in the collected release health data → Unknown: known-issue evidence is incomplete or retained
  12. 23 Oct 2026 · 08:31:50 UTC Known issues causedNone in the collected release health data → Unknown: known-issue evidence is incomplete or retained
  13. 23 Oct 2026 · 08:31:50 UTC Source coverage: windows-known-issuesCurrent → Incomplete
  14. 23 Oct 2026 · 08:31:50 UTC Source coverage: msrc-cvrfCurrent → Incomplete
  15. 23 Oct 2026 · 08:31:50 UTC Source coverage: windows-server-releasesCurrent → Incomplete
  16. 23 Oct 2026 · 08:31:50 UTC Source coverage: windows-10-releasesCurrent → Incomplete
  17. 14 Oct 2026 · 11:22:42 UTC CVEs listed directly for this KBUnknown: security evidence or the required release is incomplete → CVE-2026-59116
  18. 14 Oct 2026 · 11:22:42 UTC CVEs fixedUnknown: security evidence or the required release is incomplete → CVE-2026-59116
  19. 14 Oct 2026 · 11:22:42 UTC Restart requiredNot stated in collected security fixes → Yes
  20. 14 Oct 2026 · 11:22:42 UTC Applies toWindows 10, version 1809, Windows Server 2019 → Windows 10, version 1809, Windows Server 2019, Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019 (Server Core installation)
  21. 14 Oct 2026 · 11:22:42 UTC Source coverage: msrc-cvrfIncomplete → Current
  22. 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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