Framework overlap

Does NIST SP 800-171 cover NIST SP 800-172?

You hold NIST SP 800-171 and have been told to do NIST SP 800-172. Here is how much overlaps, control by control.

61% of NIST SP 800-172 you already have

NIST SP 800-171 already covers about 61% of NIST SP 800-172, leaving 14 of 36 controls as genuinely new work.

Already covered 0 Likely covered 22 New work 14

No control in NIST SP 800-171 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 NIST SP 800-171 reaches these. This is the list to scope.

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
3.11.4e
Security Solution Rationale Document
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
3.14.7e
Verify Correctness of Security Functions
3.2.1e
Provide Awareness Training on Advanced Persistent Threat
3.2.2e
Practical Exercises in Awareness Training
3.4.1e
Authoritative Source for Software and Firmware
3.4.3e
Automated Inventory of System Components
3.7.6e
Maintenance Operations Performed by Authorized Personnel
Show the 22 you already have
3.11.1e
Threat-Aware Risk Assessment
3.11.2e
Threat Hunting
3.11.3e
Advanced Automation and Analytics Capabilities
3.11.5e
Assess Effectiveness of Security Solutions
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
3.14.6e
Use Threat Indicator Information for Detection
3.4.2e
Automated Detection and Remediation of Unauthorized Software
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
3.6.1e
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 NIST SP 800-171 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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