CVE-2021-43243

FAQ

What type of information could be disclosed by this vulnerability?

The type of information that could be disclosed if an attacker successfully exploited this vulnerability is uninitialized memory.

How do I get the updated app?

The Microsoft Store will automatically update affected customers. Alternatively, customers can get the update immediately; see here for details.

It is possible for customers to disable automatic updates for the Microsoft Store. The Microsoft Store will not automatically install this update for those customers.

My system is in a disconnected environment; is it vulnerable?

Customers using the Microsoft Store for Business and Microsoft Store for Education can get this update through their organizations.

How can I check if the update is installed?

App package versions 1.0.42791.0 and later contain this update.

You can check the package version in PowerShell:

Get-AppxPackage -Name Microsoft.VP9VideoExtensions