Windows Server · 2016 · Release · Security update (Patch Tuesday)
December 9, 2025—KB5071543 (OS Build 14393.8688)
- Release
- Cumulative update
- KB5071543 — Microsoft's article, opens in a new tab
Windows Server 2016: Extended support
Known issues — reported on the forum
- Issue MSMQ Out of Band Patch Restores Message Queuing After December ACL Regression
- Issue MSMQ patch regression fixed by out-of-band update restores message queuing
- Issue MSMQ Breaks After December 2025 Patch — OOB Fix and Mitigation
- Issue MSMQ December 2025 update regression breaks queue writes: triage and workarounds
In the news
- Issue MSMQ Out of Band Patch Restores Message Queuing After December ACL Regression
- Issue MSMQ patch regression fixed by out-of-band update restores message queuing
- Issue MSMQ Breaks After December 2025 Patch — OOB Fix and Mitigation
- Coverage MSMQ Breakage After December 2025 Updates: OOB Fixes and Mitigation
- Issue MSMQ December 2025 update regression breaks queue writes: triage and workarounds
- Issue MSMQ Breaks After December 2025 Patch Tuesday: Root Cause and Workarounds
- Fix MSMQ breakage after December 2025 patch: diagnose, rollback, and workarounds
- Issue MSMQ Breaks After December 2025 Windows Updates: Mitigations and Rollback