ChangeIntelIT change radar
Public mode

No access to your tenant or devices. Every item links to its source. What this means

Some sources, documents or advisories need attention: 272/272 feeds/APIs · 469/469 docs · 8/9 advisories · checked 10:41 UTC Customize Public modeDiscuss ChangeIntel on Discord
KB5134125OOBOut-of-band release · 2026-10 OOB

Out-of-band release for Windows 10, version 22H2 and Windows 10, version 21H2

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

Is it safe to deploy?

Deploy nowKB5134125OOB

It fixes actively exploited vulnerabilities. Deploy as soon as possible.

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

Urgency Critical · 1 exploited Risk Unknown · evidence incomplete
Everything in the October 2026 Patch Tuesday cycle

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.

KB5127683.NET Framework
.NET Framework 3.5 and 4.8Win 10 21H2 · Win 10 22H2
13 Oct 2026
KB5127689.NET Framework
.NET Framework 3.5 and 4.8.1Win 10 21H2 · Win 10 22H2
13 Oct 2026
KB5128924.NET Framework
.NET Framework 3.5, 4.8 and 4.8.1Win 10 21H2 · Win 10 22H2
13 Oct 2026
13 Oct 2026

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

2Windows versions

MSRC lists no CVEs under this KB itself; it includes the security fixes of KB5126657 (899 CVEs). Windows release health lists no known issues from this update or the one it builds on, and none it resolves.

Applies to

From Microsoft's release-information tables
Servicing branchOS buildReleaseAvailable
Windows 10, version 22H2 19045.7811 OOB 2026-10 OOB 26 Oct 2026
Windows 10, version 21H2 19044.7811 OOB 2026-10 OOB 26 Oct 2026
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 (1)

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

  1. 28 Oct 2026 · 08:37:56 UTC Source coverage: windows-10-releasesCurrent → Incomplete
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 28 Oct 10:41 UTC · 272 of 272 readable · 268 fully read · documentation 469/469 current

No accounts or analytics; your preferences stay in your browser. Information, not advice. ChangeIntel is an independent tool and is not affiliated with or endorsed by Microsoft, Apple, Google, Broadcom (VMware), Jamf, Oracle, Mozilla, or any other vendor it covers. Product names are trademarks of their owners. Built by Evotec.