KB5071505: Overview with user sentiment and feedback

Overview

This security update for Windows Server 2012 includes fixes and quality improvements that are part of the November 11, 2025 KB5068907 (Monthly Rollup) update. The key changes include:[PowerShell 5.1] The Invoke-WebRequest command now includes a confirmation prompt with a security warning of a script execution risk. Users can choose to continue or cancel the request. This addresses CVE-2025-54100 and is detailed in KB5074596: PowerShell 5.1: Preventing script execution from web content.The update also includes resolutions for various security vulnerabilities. For more information on the resolved issues, please refer to the Deployments | Security Update Guide and the December 2025 Security Updates.

General Purpose

The primary purpose of this Windows Server 2012 cumulative update is to address security vulnerabilities and improve the overall quality and stability of the operating system. The key changes include:- Adds a security prompt to the Invoke-WebRequest PowerShell cmdlet to warn users of potential script execution risks (CVE-2025-54100, KB5074596)- Resolves various other security vulnerabilities as detailed in the December 2025 Security Updates- Includes general quality and reliability improvements for Windows Server 2012

General Sentiment

Based on the information provided, the overall sentiment towards this Windows Server 2012 cumulative update appears to be mixed. On the positive side, the update addresses important security vulnerabilities and includes general quality improvements. However, there is also a known issue reported with Message Queuing (MSMQ) functionality, which could impact some enterprise or managed IT environments. The MSMQ issue is caused by recent changes to the security model and permissions, leading to potential resource errors when sending messages. This is likely to be a concern for organizations heavily reliant on MSMQ. Microsoft has indicated that an out-of-band update released on or after December 18, 2025 will resolve this known issue.Overall, the update seems to provide valuable security fixes, but the MSMQ problem is a notable downside that organizations will need to carefully evaluate before deployment, especially those with mission-critical MSMQ applications. Careful testing and monitoring is recommended to ensure a smooth update process and continued system stability.

Known Issues

• After installing this update, users might face issues with the Message Queuing (MSMQ) functionality. This issue also impacts clustered MSMQ environments under load, leading to: - MSMQ queues becoming inactive - IIS sites failing with "Insufficient resources to perform operation" errors - Applications unable to write to queues - Errors such as "The message file 'C:WindowsSystem32msmqstorage*.mq' cannot be created" when creating message files - Misleading logs, such as "There is insufficient disk space or memory", despite sufficient resources being available- This MSMQ issue is caused by recent changes to the security model and NTFS permissions on the C:WindowsSystem32MSMQstorage folder, where MSMQ users now require write access (normally restricted to administrators).

Disclaimer: We take measures to ensure that AI-generated content is of the highest possible quality, but we cannot guarantee its accuracy and recommend that users do their own independent research. Generated on 2026-01-31 07:19 AM

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