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Microsoft December 2025 Updates Break Message Queuing Functionality

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Last updated
1 unique sources, 3 articles

Summary

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Microsoft's December 2025 security updates caused Message Queuing (MSMQ) failures across Windows 10 22H2, Windows Server 2019, and Windows Server 2016 systems. The issue arose from security model changes that modified permissions on a critical system folder, leading to errors in MSMQ queues and IIS sites. Affected systems experienced inactive queues, resource errors, and application failures. Microsoft has released an out-of-band update (KB5074976) via Update Catalog to address the issue. The company initially advised enterprise customers to contact support for a temporary workaround, and the update is now available for download.

Timeline

  1. 19.12.2025 03:15 1 articles · 23h ago

    Microsoft Releases Out-of-Band Update for MSMQ Issues

    Microsoft has released an out-of-band update (KB5074976) via Update Catalog to address the MSMQ issues. The update is not available via Windows Update or WSUS and is only offered via Update Catalog. The issue also impacts a clustered MSMQ environment under load.

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  2. 15.12.2025 11:04 3 articles · 4d ago

    Microsoft December 2025 Updates Cause MSMQ Failures

    Microsoft's December 2025 security updates caused widespread MSMQ failures due to changes in the security model and NTFS permissions. Affected systems experienced inactive queues, resource errors, and application failures. Microsoft has released an out-of-band update (KB5074976) via Update Catalog to address the issue. The company initially advised enterprise customers to contact support for a temporary workaround, and the update is now available for download.

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Information Snippets

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