Ho ho ho! December's Patch Tuesday delivers three zero-days
Briefly

Ho ho ho! December's Patch Tuesday delivers three zero-days
"Cloud files and sync providers Organizations using OneDrive, SharePoint sync, or third-party cloud storage providers should validate sync-root connectivity and file hydration workflows. Testing should cover sync-root connection and disconnection scenarios, including hydration/dehydration, client restarts, client upgrades, unexpected client crashes, account unlink/relink flows, and multi-user scenarios."
"The kernel and storage virtualization components received updates affecting Windows Sandbox functionality. Organizations using Sandbox for application testing or isolated browsing should install and enable Windows Sandbox, configure folder mappings via configuration files, and validate that mapped folders are accessible, with basic file operations (create, modify, delete) functioning correctly."
"Testing should validate UI rendering (correct display, alignment, profile images), functionality (click actions, hover states, keyboard navigation), dynamic updates (profile changes reflecting immediately), error handling (missing or corrupted profile data), and performance (no lag or crashes during user switching)."
Validate sync-root connectivity and file hydration workflows for OneDrive, SharePoint sync, and third-party cloud storage. Test connection and disconnection flows, hydration/dehydration, client restarts, upgrades, unexpected crashes, account unlink/relink, and multi-user scenarios. Install and enable Windows Sandbox after virtualization updates, configure folder mappings via configuration files, and confirm mapped folders support basic file operations: create, modify, and delete. Validate Start Menu User Tiles UI rendering, interaction behavior, keyboard navigation, dynamic profile updates, error handling for missing or corrupted profile data, and performance during user switching to ensure no lag or crashes.
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