Cyber Posture

NIST 800-53 r5 · Controls catalogue · Family IA

IA-2Identification and Authentication (Organizational Users)

Uniquely identify and authenticate organizational users and associate that unique identification with processes acting on behalf of those users.

Last updated: 09 May 2026 03:25 UTC

Implementations targeting this control (5)

ATT&CK techniques this control mitigates (171)

Weaknesses this control addresses (4)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-287Improper Authentication4,730Requires unique identification and authentication of organizational users, directly preventing improper authentication.
CWE-306Missing Authentication for Critical Function2,567Mandates authentication for organizational users and their associated processes, eliminating missing authentication for critical functions.
CWE-1392Use of Default Credentials89Unique identification requirement prevents use of default or shared credentials by organizational users.
CWE-1390Weak Authentication75Enforces authentication for users, reducing the viability of weak authentication mechanisms.

Top CVEs where this control is the strongest mitigation

CVE Risk CVSS EPSS Match
CVE-2026-218912.59.40.1092good
CVE-2026-201292.09.80.0007good
CVE-2026-17292.09.80.0013good
CVE-2025-632242.010.00.0014good
CVE-2025-104842.09.80.0045good
CVE-2023-543352.09.80.0059good
CVE-2025-13872.09.80.0061good
CVE-2025-271382.09.80.0060good
CVE-2024-129192.09.80.0011good
CVE-2025-664892.09.80.0014good
CVE-2026-337462.09.80.0005good
CVE-2024-112862.09.80.0005good
CVE-2026-311512.09.80.0006good
CVE-2026-308312.09.80.0008good
CVE-2025-124202.09.80.0005good
CVE-2025-83592.09.80.0044good
CVE-2025-76422.09.80.0044good
CVE-2026-15681.99.60.0002good
CVE-2026-218811.89.10.0032good
CVE-2026-393221.88.80.0005good
CVE-2026-302231.88.80.0004good
CVE-2026-201261.88.80.0002good
CVE-2025-471581.89.00.0026good
CVE-2025-302361.78.60.0020good
CVE-2026-340721.78.30.0010good

Other controls in family IA

IA-1 IA-10 IA-11 IA-12 IA-13 IA-3 IA-4 IA-5 IA-6 IA-7 IA-8 IA-9