Microsoft is starting to push the KB5012170 security update on Windows 11 22H2. The update supposed to patch a Secure Boot DBX GRUB vulnerability, though, has a lot of known issues.
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Rufus version 3.21 is now generally available. The latest update brings several improvements related to Windows like better local account support and file system support, among others.
With Patch Tuesday recently, Microsoft released the KB5012170 update which adds new vulnerable UEFI signatures to the Secure Boot DBX. The newly added signatures are related to the GRUB vulnerability.