The following FASTBUGS have been uploaded to
http://ftp.scientificlinux.org/linux/scientific/6x/i386/updates/fastbugs/
http://ftp.scientificlinux.org/linux/scientific/6x/x86_64/updates/fastbugs/
i386:
6x/i386/microcode_ctl-1.17-33.23.el6_10.i686.rpm
x86_64:
6x/x86_64/microcode_ctl-1.17-33.23.el6_10.x86_64.rpm