Framework overlap

Does CMMC 2.0 cover NIST SP 800-172?

You hold CMMC 2.0 and have been told to do NIST SP 800-172. Here is how much overlaps, control by control.

64% of NIST SP 800-172 you already have

CMMC 2.0 already covers about 64% of NIST SP 800-172, leaving 13 of 36 controls as genuinely new work.

Already covered 0 Likely covered 23 New work 13

No control in CMMC 2.0 maps directly to one in NIST SP 800-172. Everything counted as covered is covered because both map to the same third standard, which is what a crosswalk is, but it is an inference rather than a lookup.

What is genuinely new work

Nothing in CMMC 2.0 reaches these. This is the list to scope.

3.11.5e
Assess Effectiveness of Security Solutions
3.11.7e
Supply Chain Risk Management Plan
3.14.1e
Verify Integrity of Security Critical Software and Firmware
3.14.4e
Refresh Systems and Components from a Trusted Baseline
3.14.5e
Verify Integrity After Reauthentication
3.14.6e
Use Threat Indicator Information for Detection
3.14.7e
Verify Correctness of Security Functions
3.2.2e
Practical Exercises in Awareness Training
3.4.3e
Automated Inventory of System Components
3.5.1e
Identification of Systems, Components, and Devices
3.5.2e
Password Manager Use
3.5.3e
Multifactor Authentication for Local, Network, and Remote Access
3.7.6e
Maintenance Operations Performed by Authorized Personnel
Show the 23 you already have
3.1.1e
Dual Authorization for Sensitive System Operations
3.1.2e
Restrict Access to Systems and System Components to Defined Security Domains
3.1.3e
Employ Secure Information Transfer Solutions
3.11.1e
Threat-Aware Risk Assessment
3.11.2e
Threat Hunting
3.11.3e
Advanced Automation and Analytics Capabilities
3.11.4e
Security Solution Rationale Document
3.12.1e
Penetration Testing by Independent Agents
3.13.1e
Network Segmentation by Security Domain
3.13.2e
Concept of Least Privilege in System Engineering
3.13.3e
Diversification of System Components
3.13.4e
Use Trusted Communications Paths for Privileged Access
3.13.5e
Randomness in System Operations
3.13.6e
Verify Identity of Endpoint Hardware
3.14.2e
Monitor Organizational Systems with Specialized Capabilities
3.14.3e
Information Inputs Validation
3.2.1e
Provide Awareness Training on Advanced Persistent Threat
3.4.1e
Authoritative Source for Software and Firmware
3.4.2e
Automated Detection and Remediation of Unauthorized Software
3.6.1e
Establish Security Operations Center (SOC)
3.6.2e
Establish and Maintain a Cyber Incident Response Team
3.9.1e
Enhanced Personnel Screening
3.9.2e
Insider Threat Program

How this is calculated

Already covered means a mapping runs from a control in CMMC 2.0 to that control. Likely covered means no direct mapping exists but both frameworks map to the same control in a third standard. New work means neither. We keep those separate rather than adding them into one friendlier number, because blending them would present a two-hop inference as a verified fact.

Coverage is not symmetric. Run it the other way and you will get a different number; both are correct.

From 332,959 cross-framework control mappings across 723 frameworks, 531 of them verified against their source documents. It does not tell you that you are compliant: a mapped control means the two standards ask for the same thing, not that you have done it.

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