Cyber Posture

NIST 800-53 r5 · Controls catalogue · Family IA

IA-4Identifier Management

Manage system identifiers by: Receiving authorization from {{ insert: param, ia-04_odp.01 }} to assign an individual, group, role, service, or device identifier; Selecting an identifier that identifies an individual, group, role, service, or device; Assigning the identifier to the intended individual, group, role, service, or device; and Preventing reuse of identifiers for {{ insert: param, ia-04_odp.02 }}.

Last updated: 09 May 2026 03:25 UTC

Implementations targeting this control (0)

ATT&CK techniques this control mitigates (36)

Weaknesses this control addresses (7)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-862Missing Authorization8,680Requires explicit authorization before any identifier can be assigned, preventing missing authorization.
CWE-284Improper Access Control4,832Ensures identifiers are properly authorized and assigned, supporting effective access control.
CWE-287Improper Authentication4,730Provides unique, authorized identifiers that are foundational to preventing authentication weaknesses.
CWE-863Incorrect Authorization3,234Enforces correct authorization checks during the identifier assignment process.
CWE-285Improper Authorization1,230Mandates authorization for identifier assignment, reducing risks of improper authorization.
CWE-286Incorrect User Management30Directly implements correct management of identifiers for individuals, groups, roles, services, and devices.
CWE-642External Control of Critical State Data18Requires authorization and prevents reuse, mitigating external control of critical identifier state data.

Top CVEs where this control is the strongest mitigation

CVE Risk CVSS EPSS Match
CVE-2025-136091.68.20.0009good
CVE-2026-226651.68.10.0004good
CVE-2025-474111.68.10.0003good
CVE-2025-297731.25.80.0009good
CVE-2024-365552.09.80.0011good
CVE-2025-74931.89.10.0011good
CVE-2026-336651.57.50.0002partial
CVE-2026-399761.47.10.0006good
CVE-2026-356701.25.90.0008good
CVE-2025-243991.88.80.0040partial
CVE-2024-82731.88.80.0011partial

Other controls in family IA

IA-1 IA-10 IA-11 IA-12 IA-13 IA-2 IA-3 IA-5 IA-6 IA-7 IA-8 IA-9