Security Resilience

NIST 800-53 r5 · Controls catalogue · Family AC

AC-6Least Privilege

Employ the principle of least privilege, allowing only authorized accesses for users (or processes acting on behalf of users) that are necessary to accomplish assigned organizational tasks.

Last updated: 16 October 2026 07:24 UTC

Implementations targeting this control (1)

ATT&CK techniques this control mitigates (268)

Weaknesses this control addresses (8)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+Supports proper access control through restriction to only authorized necessary accesses.
CWE-269Improper Privilege Management4,000+Implements core proper privilege management by restricting to only required rights.
CWE-732Incorrect Permission Assignment for Critical Resource2,000+Prevents overly permissive assignments to critical resources by limiting to task needs.
CWE-276Incorrect Default Permissions1,800+Guides setting of default permissions to the minimum required level.
CWE-285Improper Authorization1,700+Requires authorization to grant only the minimal privileges needed for tasks.
CWE-266Incorrect Privilege Assignment1,200+Ensures privileges are assigned only as necessary rather than incorrectly over-granted.
CWE-250Execution with Unnecessary Privileges300+Directly prevents execution with more privileges than needed for assigned tasks.
CWE-272Least Privilege Violation43Enforces the least privilege principle to avoid violations of minimal necessary access.

Top CVEs where this control is the strongest mitigation

CVE Risk CVSS EPSS Match
CVE-2025-31201 KEV 9.99.80.1397good
CVE-2026-48172 KEV 9.99.80.0101good
CVE-2024-28000 9.89.80.6827good
CVE-2025-27007 9.49.80.5419good
CVE-2025-12420 9.49.80.5319good
CVE-2024-1222 8.98.60.6398good
CVE-2025-47539 8.89.80.2788good
CVE-2026-23550 8.69.80.2139good
CVE-2025-41244 KEV 8.57.80.0844good
CVE-2025-41115 8.510.00.1691good
CVE-2026-33825 KEV 8.57.80.0040good
CVE-2026-56155 KEV8.57.80.0035good
CVE-2024-38813 KEV 8.37.50.1736good
CVE-2025-34515 8.19.80.0797good
CVE-2026-0322 KEV8.17.20.0108partial
CVE-2025-49388 8.09.80.0647good
CVE-2026-748497.99.80.0461partial
CVE-2026-814677.89.80.0299partial
CVE-2026-890107.89.80.0317partial
CVE-2026-436417.89.80.0303partial
CVE-2026-1010017.810.00.0263partial
CVE-2026-1010757.810.00.0245partial
CVE-2024-24882 7.79.80.0209good
CVE-2024-54363 7.79.80.0194good
CVE-2025-34274 7.79.80.0208good

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-5 AC-7 AC-8 AC-9