Overview
KB5039213, released on June 11, 2024, is a cumulative security update for Windows 11 version 21H2, specifically targeting OS Build 22000.3019. This update addresses various security vulnerabilities and includes several improvements to enhance system performance and stability. Notably, it introduces features such as SMB over Quick UDP Internet Connections (QUIC) client certificate authentication, allowing administrators to control client access to SMB over QUIC servers. Additionally, it updates the curl.exe version to 8.7.1 and resolves multiple issues affecting system processes and functionalities, including lsass.exe and Remote Desktop sessions. The update aims to bolster the overall security posture of Windows 11 systems while ensuring smoother operation for users.
General Purpose
The primary purpose of KB5039213 is to enhance the security and functionality of Windows 11 version 21H2. This update introduces critical improvements, including the activation of SMB over QUIC client certificate authentication, which allows for more secure file sharing over networks. It also addresses significant issues such as the non-responsiveness of lsass.exe after previous updates, problems with Remote Desktop sessions leading to user sign-outs, and authentication issues with Microsoft Entra ID accounts. Furthermore, it resolves memory leaks in lsass.exe and issues with Windows Defender Application Control. These enhancements are crucial for maintaining system integrity and user productivity.
General Sentiment
The general sentiment surrounding KB5039213 appears to be mixed. While many users appreciate the security enhancements and the resolution of critical issues, there are concerns regarding the known issue that prevents users from changing their account profile pictures, which may frustrate some. However, this issue is reported to have limited impact, suggesting that the overall functionality of the system remains intact. Feedback from forums indicates a cautious optimism, with users recognizing the importance of security updates but remaining wary of potential disruptions caused by the known issues. Overall, the update is seen as beneficial, albeit with some reservations.
Known Issues
- Users may be unable to change their user account profile picture, receiving error code 0x80070520 when attempting to do so. This issue has limited impact and users are advised to contact Windows support if they encounter it.
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 2024-12-21 11:25 PM