NIST SP 800-171 CUI Protection Center
Study this CUI requirement family as a connected set of implementation decisions, evidence expectations, and assessment procedures.
CUI requirement family
Use this family as a planning boundary, but assess every applicable requirement against the real CUI system boundary, inherited services, organization-defined parameters, and operational evidence.
Family catalog
Withdrawn records remain available and link to the requirements where their intent was incorporated or addressed.
Establishing the system boundary is a prerequisite to assessing the risk of the unauthorized disclosure of CUI. Risk assessments consider threats, vulnerabilities, likelihood, and adverse impacts to organizational operations and assets based on the operation and use of the system and the unauthorized disclosure of CUI. Risk assessments also consider risks from external parties (e.g., contractors operating systems on
Organizations determine the required vulnerability scanning for system components and ensure that potential sources of vulnerabilities (e.g., networked printers, scanners, and copiers) are not overlooked. Vulnerability analyses for custom software may require additional approaches, such as static analysis, dynamic analysis, or binary analysis. Organizations can use these approaches in source code reviews and tools (e
Withdrawn NIST SP 800-171 Rev. 3 requirement 03.11.03; use the recorded replacement relationships.
This requirement addresses the need to determine an appropriate response to risk before generating a plan of action and milestones (POAM) entry. It may be possible to mitigate the risk immediately so that a POAM entry is not needed. However, a POAM entry is generated if the risk response is to mitigate the identified risk and the mitigation cannot be completed immediately.
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