KB5094123: Overview with user sentiment and feedback

Overview

KB5094123 is a cumulative security update released on June 9, 2026, for Windows Server 2019 and Windows 10 Enterprise LTSC 2019 (OS Build 17763.8880). This patch addresses security vulnerabilities and includes quality improvements across multiple system components including Secure Boot, folder customization, and Windows Push Notification Services.

General Purpose

• Enables dynamic status reporting for Secure Boot states in Windows Security App with new policy settings for controlled data transmission
• Implements security hardening for desktop.ini file processing to strengthen folder customization security
• Resolves Windows Push Notification Services (WNS) issues causing Microsoft Outlook and other applications to hang or stop responding
• Includes additional high-confidence device targeting data for Secure Boot certificate distribution in a phased rollout approach
• Provides cumulative security fixes and quality improvements as part of the monthly update cycle

General Sentiment

The patch appears to be a standard monthly security update with mixed implications. While it addresses important security hardening measures and resolves critical application reliability issues with WNS, the security changes to desktop.ini processing may impact user experience by causing missing custom folder icons or localized folder names for downloaded or remote content. Additionally, there is a known issue affecting Microsoft Office applications launched from certain third-party applications, which could disrupt workflow for users relying on OLE automation integration.

Known Issues

• Microsoft Office applications might fail to open from certain third-party applications that use OLE automation to interact with Office, affecting document opening and application launching capabilities
• Custom folder icons or localized folder names might not appear for downloaded or remote content due to security hardening changes in desktop.ini processing (folder access remains unaffected)

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 2026-07-29 01:30 PM

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