Microsoft Released Out-of-band Update to Fix MSMQ Bug that Impacts IIS Sites

Microsoft has deployed an emergency out-of-band update to address a significant issue with Message Queuing (MSMQ) functionality that emerged following the December 9 security patches. The update, released on December 18, 2025, targets Windows 10 versions 22H2 and 21H2 through OS Builds 19044.6693 and 19045.6693. The MSMQ vulnerability became apparent after users installed the previous […]

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