Microsoft Windows Server 2025 Update Version OS Build 26100.33451
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Update Summary
KB5129235 is a non-security out-of-band cumulative update for Windows Server 2025, OS Build 26100.33451. It fixes Remote Desktop Services instability after KB5122871 and resolves multichannel USB Audio Class 1.0 failures. Reference IDs: KB5122870, KB5070881, CVE-2025-59287.
Update Details
Security
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Bug Fixes
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Known Issues
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Hints
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Product Information
Vendor: Microsoft
Product: Windows Server 2025
Product type: Software
Application category: Utilities
Platform: Windows
Version: OS Build 26100.33451
Vendor information published: Sep 14, 2026
Original release notes: View on vendor site
Published on updatealert.io: Sep 17, 2026
Description: Server operating system for next-generation on-premises and hybrid workloads.