The exclusive nature of KB5031358 served a crucial purpose: . By initially releasing it through managed channels (WSUS, Catalog), Microsoft allowed system administrators to validate the update on critical hardware before wide release. This is especially important for x64 systems running specialized software, such as medical equipment, financial trading platforms, or industrial control systems.
A flaws within communication endpoints allowed attackers to elevate local account privileges improperly. An attacker could exploit this loophole to gain administrative visibility over areas normally restricted to standard users. 3. WordPad Information Disclosure (CVE-2023-36563)
Click and launch the resulting .msu file to update offline. Troubleshooting Common Installation Issues The exclusive nature of KB5031358 served a crucial purpose:
: An information disclosure vulnerability in Microsoft WordPad.
in certain apps (PowerPoint, Notepad). Fixed in later update (KB5031455). A flaws within communication endpoints allowed attackers to
Click , launch the .msu file, and follow the on-screen prompts.
October 10, 2023 (as part of the monthly "Patch Tuesday" cycle) OS Build: 22621.2428 KB Article Number: KB5031358 Architecture: x64-based Systems (Exclusive – Not for ARM64 or x86) 23H2 (which has its own CUs)
Open your web browser and go to the official website. Search for KB5031358 .
This update does not apply to Windows 11 24H2, 23H2 (which has its own CUs), or ARM64 devices. For ARM64, use KB5031358 (ARM64).
Fixed copy operations that had stopped working in App-V environments since earlier 2023 updates. End of Service Milestone A primary objective of this update was to mark the End of Servicing