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SQL Server linked server connections might remain open

Connections to external databases such as Oracle and PostgreSQL can accumulate over time

What to do

Microsoft confirmed it and lists no fix yet. Check whether your devices match the symptoms before rolling out KB5127648 broadly.

31Days open since KB5127648
11/11Windows versions where it is open
12 NovLast updated by Microsoft · 1d ago

Status on each Windows version

Microsoft can list one issue differently per version
Windows versionStatusCaused byFixed byUpdated
Windows 11, version 26H2Home and Pro · Enterprise and Education Confirmed KB5127648 · 13 Oct Not yet 12 Nov
Windows 11, version 26H1Home and Pro · Enterprise and Education Confirmed KB5127646 · 13 Oct Not yet 11 Nov
Windows 11, version 25H2Home and Pro · Enterprise and Education Confirmed KB5127648 · 13 Oct Not yet 11 Nov
Windows 11, version 24H2Enterprise and Education · Enterprise LTSC · IoT Enterprise LTSC Confirmed KB5127648 · 13 Oct Not yet 11 Nov
Windows 11, version 23H2 Confirmed KB5126653 · 13 Oct Not yet 11 Nov
Windows 10, version 18092019 () Enterprise LTSC · 2019 () IoT Enterprise LTSC Confirmed KB5126651 · 13 Oct Not yet 11 Nov
Windows Server 2016 Confirmed KB5126868 · 13 Oct Not yet 11 Nov
Windows Server 2025 Confirmed KB5126646 · 13 Oct Not yet 11 Nov
Windows Server 2022 Confirmed KB5126655 · 13 Oct Not yet 11 Nov
Windows Server 2012 R2 Confirmed KB5126836 · 13 Oct Not yet 11 Nov
Windows Server 2012 Confirmed KB5126835 · 13 Oct Not yet 11 Nov

The update that caused it

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What changed

  1. Affected-version status updated · Caused by: KB5127646 → KB5127648
Page history

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Field-level log (5)

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  1. 12 Nov 2026 · 19:41:04 UTC Updated by Microsoft11 Nov 2026 → 12 Nov 2026
  2. 12 Nov 2026 · 19:41:04 UTC Status on Windows 11, version 26H2Confirmed
  3. 12 Nov 2026 · 19:41:04 UTC Windows versionsWindows 11, version 26H1, Windows 11, version 25H2, Windows 11, version 24H2, Windows 11, version 23H2, Windows 10, version 1809, Windows Server 2016, Windows Server 2025, Windows Server 2022, Windows Server 2012 R2, Windows Server 2012 → Windows 11, version 26H2, Windows 11, version 26H1, Windows 11, version 25H2, Windows 11, version 24H2, Windows 11, version 23H2, Windows 10, version 1809, Windows Server 2016, Windows Server 2025, Windows Server 2022, Windows Server 2012 R2, Windows Server 2012
  4. 12 Nov 2026 · 19:41:04 UTC Caused byKB5127646 → KB5127648
  5. 12 Nov 2026 · 19:41:04 UTC Link: Microsoft release healthhttps://learn.microsoft.com/en-us/windows/release-health/status-windows-11-26h1#3721msgdesc → https://learn.microsoft.com/en-us/windows/release-health/status-windows-11-26h2#3721msgdesc
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 13 Nov 10:02 UTC · 274 of 275 readable · 272 fully read · documentation 469/469 current