< all_regressions

KB5124008

16 regressions reported

regressions

[WORKAROUND]

Active Directory

Credential Guard protected machines on Windows 11 24H2 with KB5124008 cannot sign in interactively with domain credentials due to trust relationship loss.

first seen 9/16/2026 · last seen 9/16/2026 · 3 reports · 2 admins

[WORKAROUND]

Other

USB Audio Class 1.0 devices may fail to start or produce no sound, displaying Code 10 or failing in multichannel audio modes after installing KB5124008 on Windows Server 2022.

first seen 9/11/2026 · last seen 9/14/2026 · 18 reports · 2 admins

[WORKAROUND]

RDP

Remote Desktop Services might stop responding after a September 2026 security update on Windows 11 25H2, causing instability.

first seen 9/11/2026 · last seen 9/11/2026 · 1 report · 1 admin

[WORKAROUND]

RDP

Remote Desktop Services might stop responding after the Sept 2026 security update (KB5124008) on Windows 11 24H2, causing RDS instability.

first seen 9/11/2026 · last seen 9/11/2026 · 1 report · 1 admin

[WORKAROUND]

RDP

Remote Desktop Services might stop responding on Windows 11 24H2 after September 2026 security update KB5124008, causing instability.

first seen 9/11/2026 · last seen 9/11/2026 · 4 reports

[WORKAROUND]

Hyper-V

Plan9 host folder shares might not appear in Hyper-V-based Linux VMs after installing the September 2026 security update (KB5124008) on Windows 11, version 24H2.

first seen 9/11/2026 · last seen 9/11/2026 · 16 reports · 1 admin

[WORKAROUND]

RDP

Remote Desktop Services might stop responding after Sept. 2026 security update KB5124008 on Windows 11, version 25H2, causing RDS instability.

first seen 9/11/2026 · last seen 9/11/2026 · 1 report · 1 admin

[WORKAROUND]

RDP

Remote Desktop Services might stop responding after KB5124008 on Windows 11, version 24H2, causing instability. Issue is mitigated.

first seen 9/11/2026 · last seen 9/11/2026 · 1 report · 1 admin

[WORKAROUND]

RDP

Remote Desktop Services might stop responding on Windows 11 25H2 devices after installing KB5124008, causing instability for users trying to connect.

first seen 9/11/2026 · last seen 9/11/2026 · 1 report · 1 admin

[WORKAROUND]

RDP

Remote Desktop Services might stop responding on Windows 11, version 24H2 after installing KB5124008, causing RDS instability.

first seen 9/11/2026 · last seen 9/11/2026 · 1 report · 1 admin

[WORKAROUND]

RDP

Remote Desktop Services might stop responding on Windows 11 (25H2) devices after installing KB5124008.

first seen 9/11/2026 · last seen 9/11/2026 · 1 report · 1 admin

[WORKAROUND]

RDP

Remote Desktop Services might stop responding after the September 2026 security update KB5124008 on Windows 11, version 24H2, causing RDS instability.

first seen 9/11/2026 · last seen 9/11/2026 · 1 report · 1 admin

[BREAKS-PROD]

RDP

Remote Desktop Services might stop responding on Windows 11 25H2 after the September 2026 security update KB5124008.

first seen 9/11/2026 · last seen 9/11/2026 · 1 report · 1 admin

[WORKAROUND]

RDP

Remote Desktop Services might stop responding on Windows 11 25H2 after installing KB5124008.

first seen 9/11/2026 · last seen 9/11/2026 · 1 report · 1 admin

[WORKAROUND]

RDP

Remote Desktop Services might stop responding after Sept. 2026 security update KB5124008, affecting Windows 11 24H2 devices with RDS enabled.

first seen 9/11/2026 · last seen 9/11/2026 · 1 report · 1 admin

[BREAKS-PROD]

RDP

Remote Desktop Services might stop responding on Windows 11, version 24H2 after installing KB5124008.

first seen 9/11/2026 · last seen 9/11/2026 · 1 report · 1 admin

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