i did not try to downgrade it to the 14.9.1 - but might have found a compatible version in 14.14.0 for the magick.Net package. Note the earlier mentioned 14.13.1 is as well vulnerable since this week.
which compiled fine until i deleted intermediate … / … and regenerated the vs project files: → then it had the following problem:
Meanwhile VS needed an update too - so not sure to which update this problem is related.
!