A microcode_ctl bugfix update has been released for CentOS 7.
CEBA-2021:0623 CentOS 7 microcode_ctl BugFix Update
CentOS Errata and Bugfix Advisory 2021:0623
Upstream details at : https://access.redhat.com/errata/RHBA-2021:0623
The following updated files have been uploaded and are currently
syncing to the mirrors: ( sha256sum Filename )
x86_64:
0cf6bb4e5beb49f3a45a5171babb25685cf72156e8666dc2a57f9fef6af67838 microcode_ctl-2.1-73.8.el7_9.x86_64.rpm