KB4503293 blocks Bluetooth connections that are not secure
Folks, it’s Patch Tuesday time. Microsoft started rolling out this month’s security updates via the Windows Update Service.
If you’re running Windows 10 v1903, you can now download and install cumulative update KB4503293 on your machine.
As far as the changelog if concerned, there are only two main improvements.
The first one is a security improvement that blocks all Bluetooth connections that are not secure. The patch also adds a series of general security improvements and fixes to various OS components such as Windows Media, Windows Shell, Windows Server, Windows Authentication, and more.
Here’s the official changelog as listed on Microsoft’s website:
- Addresses a security vulnerability by intentionally preventing connections between Windows and Bluetooth devices that are not secure and use well-known keys to encrypt connections, including security fobs. If BTHUSB Event 22 in the Event Viewer states, “Your Bluetooth device attempted to establish a debug connection….”, then your system is affected. Contact your Bluetooth device manufacturer to determine if a device update exists.
- Security updates to Windows Virtualization, Microsoft Scripting Engine, Internet Explorer, Windows App Platform and Frameworks, Windows Input and Composition, Windows Media, Windows Shell, Windows Server, Windows Authentication, Windows Cryptography, Windows Storage and Filesystems, Windows SQL Components, the Microsoft JET Database Engine, and Internet Information Services.
You can automatically download KB4503293 via Windows Update. All you need to do is go to Settings > Update > hit the Check for updates button.
Of course, you can also download the stand-alone update from the Microsoft Update Catalog website.
Keep in mind that KB4503293 may break Windows Sandbox. So, if you’re using this feature, you should wait for a few more days until Microsoft has fixed this bug.
In case you’re experiencing performance issues after installing this update, use this troubleshooting guide to fix the problem.
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