This requirement outlines what a baseline configuration is, how often it should be updated and when it should be applied

A baseline configuration is a set of software that is considered required for the type of system being deployed. This includes OS, productivity software, security software and administrative settings..

Establishing a baseline configuration ensures that all similar systems have the same software loads to make deployment and maintenance faster.

It makes remediation and scanning less of a chore as you can push the update packages to subsets of systems with same baseline software, removing multiple vulnerabilities in one action

These baseline configurations should be reviewed at least annually to ensure the software still meets business needs and each system should be reviewed when they are deployed or upgraded to ensure they still meet that baseline configuration.