Seems weird that a firmware image with 25/11/2021 build date would have that vulnerability still.
It's a different model, it would be a bigger problem if it did accept it.
The EU update servers don't have a firmware image for this device yet.
Nothing that you could use to flash, since they only use signed images.
All in all, should be fairly simple for someone to port, but it's risky since there's no stock image to restore to. Users would have to backup the stock firmware first.
Additionally, some Xiaomi units are shipping with some less-common SPI-NOR chips of late. Not much of an issue once identified, but can stop images from booting. Can we see a boot log?