Microsoft December 2025 Updates Break Message Queuing Functionality
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Microsoft's December 2025 security updates are causing Message Queuing (MSMQ) failures across Windows 10 22H2, Windows Server 2019, and Windows Server 2016 systems. The issue arises from security model changes that modify permissions on a critical system folder, leading to errors in MSMQ queues and IIS sites. Affected systems experience inactive queues, resource errors, and application failures. Microsoft is investigating but has not yet provided a fix timeline.
Timeline
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15.12.2025 11:04 1 articles · 8h ago
Microsoft December 2025 Updates Cause MSMQ Failures
Microsoft's December 2025 security updates are causing widespread MSMQ failures due to changes in the security model and NTFS permissions. Affected systems experience inactive queues, resource errors, and application failures. Microsoft is investigating but has not yet provided a fix timeline.
Show sources
- Microsoft: December security updates cause Message Queuing failures — www.bleepingcomputer.com — 15.12.2025 11:04
Information Snippets
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Affected systems include Windows 10 22H2, Windows Server 2019, and Windows Server 2016.
First reported: 15.12.2025 11:041 source, 1 articleShow sources
- Microsoft: December security updates cause Message Queuing failures — www.bleepingcomputer.com — 15.12.2025 11:04
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The issue is caused by security model changes in MSMQ that modify NTFS permissions on the C:\Windows\System32\MSMQ\storage folder.
First reported: 15.12.2025 11:041 source, 1 articleShow sources
- Microsoft: December security updates cause Message Queuing failures — www.bleepingcomputer.com — 15.12.2025 11:04
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Symptoms include inactive MSMQ queues, IIS site failures, and misleading resource errors.
First reported: 15.12.2025 11:041 source, 1 articleShow sources
- Microsoft: December security updates cause Message Queuing failures — www.bleepingcomputer.com — 15.12.2025 11:04
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Microsoft has not provided a timeline for a fix or confirmed whether an emergency update will be issued.
First reported: 15.12.2025 11:041 source, 1 articleShow sources
- Microsoft: December security updates cause Message Queuing failures — www.bleepingcomputer.com — 15.12.2025 11:04