Windows Server 2022 build 20348.5631 (KB5129237) — release notes, known issues

• Issue Known issue After installing KB5070884 or later updates, Windows Server Update Services (WSUS) does not display synchronization error details within its error reporting. This functionality is temporarily removed to address the Remote Code Execution Vulnerability, CVE-2025-59287 . After installing the September 8, 2026, Windows security update, some USB Audio Class 1.0 devices might fail to start or produce audio. Affected devices might experience one or more of the following symptoms: The device displays an error in Device Manager: "This device cannot start (Code 10).” No audio output. Volume controls are unresponsive or remain at zero. Sound settings are unresponsive or unavailable. This issue is limit Workaround: Microsoft is working on a resolution and will update this documentation when more information is available.

Microsoft's release notes for KB5129237 ›

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• Coverage KB5129237 Leaves Windows Server 2022 Type 3 Printing Unfixed Sep 17, 2026 · names this build
• Coverage Windows Server 2022: Security to 2031, Microsoft 365 Ends 2028 Sep 16, 2026 · Windows Server 2022 coverage from this build's release window

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