Security Resilience

NIST 800-53 r5 · Controls catalogue · Family AC

AC-5Separation of Duties

Identify and document {{ insert: param, ac-05_odp }} ; and Define system access authorizations to support separation of duties.

Last updated: 16 October 2026 07:24 UTC

Implementations targeting this control (6)

ATT&CK techniques this control mitigates (165)

Weaknesses this control addresses (6)AI-assisted

CWEs ranked by how often they appear in real CVEs. The rationale describes how this control reduces exploitability of each weakness class.

CWE Name CVEs Why this control addresses it
CWE-284Improper Access Control8,100+Defining authorizations to support separation of duties strengthens overall access control by preventing unauthorized combinations of actions within a single account.
CWE-269Improper Privilege Management4,000+By mandating division of duties across roles, the control enforces proper privilege management and prevents a single entity from controlling an entire sensitive process.
CWE-285Improper Authorization1,700+The control requires authorizations to be structured around separated duties, mitigating improper authorization that would otherwise allow one user to perform conflicting operations.
CWE-266Incorrect Privilege Assignment1,200+The control requires explicit definition of separated access authorizations, making incorrect privilege assignments that bundle conflicting duties harder to implement.
CWE-250Execution with Unnecessary Privileges300+Separation of duties prevents any single user from holding all privileges needed to complete a critical task, directly reducing execution with unnecessary privileges.
CWE-272Least Privilege Violation43Separation of duties is a direct mechanism to enforce least privilege by ensuring no individual receives more access than required for their isolated responsibilities.

Top CVEs where this control is the strongest mitigation

CVE Risk CVSS EPSS Match
CVE-2026-966596.49.10.0033partial
CVE-2025-41244 KEV 8.57.80.0844partial
CVE-2026-296467.49.80.0068partial
CVE-2024-55968 6.78.80.0102partial
CVE-2025-23015 6.78.80.0101partial
CVE-2025-26467 6.68.80.0052partial
CVE-2024-4877 6.58.80.0043good
CVE-2026-27314 6.58.80.0034partial
CVE-2024-39866 6.48.80.0024partial
CVE-2026-23526 6.48.80.0029partial
CVE-2026-0945 6.48.80.0025partial
CVE-2026-10090 6.49.00.0058partial
CVE-2026-2459 6.18.10.0035partial
CVE-2026-42406 6.18.70.0025partial
CVE-2026-24606.08.10.0029partial
CVE-2026-30792 6.08.10.0031good
CVE-2026-483996.07.50.0087good
CVE-2023-52714 5.87.50.0034good
CVE-2024-7571 5.77.80.0026partial
CVE-2025-0889 5.77.80.0020good
CVE-2024-47045 5.67.80.0015good
CVE-2025-2297 5.67.80.0013good
CVE-2025-62587 5.68.20.0020partial
CVE-2025-62588 5.68.20.0021partial
CVE-2025-62589 5.68.20.0021partial

Other controls in family AC

AC-1 AC-10 AC-11 AC-12 AC-13 AC-14 AC-15 AC-16 AC-17 AC-18 AC-19 AC-2 AC-20 AC-21 AC-22 AC-23 AC-24 AC-25 AC-3 AC-4 AC-6 AC-7 AC-8 AC-9