The following errata for CentOS-2 have been built and uploaded the the centos mirror:

RHSA-2004:464-01 Updated mc package resolves security vulnerabilities

Files available: mc-4.5.51-36.4.i386.rpm gmc-4.5.51-36.4.i386.rpm

More details are available from the RedHat web site at https://rhn.redhat.com/errata/rh21as-errata.html

The easy way to make sure you are up to date with all the latest patches is to run: # yum update