Cyber Posture

NIST 800-53 r5 · Controls catalogue · Family PL

PL-3System Security Plan Update

System Security Plan Update

Last updated: 09 May 2026 03:25 UTC

Implementations targeting this control (0)

ATT&CK techniques this control mitigates (0)

Weaknesses this control addresses (2)AI

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-693Protection Mechanism Failure476Plan updates require reassessment of selected protection mechanisms, surfacing cases where they no longer address the current threat or implementation.
CWE-657Violation of Secure Design Principles19Regular SSP updates force review of whether the system's evolving design continues to follow documented secure design principles after changes.

Top CVEs where this control is the strongest mitigation

CVE Risk CVSS EPSS Match
No CVEs annotated to this control yet — the per-CVE backfill is in progress.

Other controls in family PL

PL-1 PL-10 PL-11 PL-2 PL-4 PL-5 PL-6 PL-7 PL-8 PL-9