Known issues Windows Windows issue 3721 Confirmed
Windows release health · Windows 11, version 26H2 and 10 more versions
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.
31 Days open since KB5127648
11/11 Windows versions where it is open
12 Nov Last updated by Microsoft · 1d ago
Status on each Windows versionMicrosoft can list one issue differently per version The update that caused it
Urgency Critical · 1 exploited
Risk High · 1 open issue
From Microsoft's Windows release health pages. Status and dates are Microsoft's, read on a schedule; update dates come from Microsoft's release-information tables. Whether your devices are affected is not known here.
What changed
Affected-version status updated · Caused by: KB5127646 → KB5127648
12 Nov 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 (5)
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12 Nov 2026 · 19:41:04 UTC
Updated by Microsoft 11 Nov 2026 → 12 Nov 2026 12 Nov 2026 · 19:41:04 UTC
Status on Windows 11, version 26H2 Confirmed 12 Nov 2026 · 19:41:04 UTC
Windows versions 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 → 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 12 Nov 2026 · 19:41:04 UTC
Caused by KB5127646 → KB5127648 12 Nov 2026 · 19:41:04 UTC
Link: Microsoft release health https://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