Outside its regular Patch Tuesday schedule, Microsoft is now rolling out update KB4522016 for devices running the Windows 10 May 2019 Update, version 1903.
KB4522016 bumps the version number to build 18362.357, and according to the company, is a minor update to patch a security vulnerability with Internet Explorer that “could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.”
Alongside this update, Microsoft is also pushing the patch for virtually every version of Windows 10, including version 1809 (KB4522015) and 1803 (KB4522014), as well as for older version, such as for version 1709 (KB4522012), 1703 (KB4522011), 1607 (KB4522010), and 1507 (KB4522009).
Download September 2019 update for Windows 10
These updates are available immediately, they’ll download and install automatically, but you can always force the update from Settings > Update & Security > Windows Update and clicking the Check for updates button. You can find more details about the most recent updates in the Windows 10 update history tracker guide.