CentOS 6 Linux kernel 2.6.32-573.18.1 has recently been released.

Update type(s): bugfix

Full details can be found here.

Updating the Kernel

You can either initiate a full yum update:

yum update

Alternatively, just update the kernel packages:

yum update "kernel-*"

Cached repo data can also prevent new updates from being found. To clear your yum cache, run:

yum clean all