Cyber Resilience

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: 21 August 2026 14:15 UTC

Implementations targeting this control (2)

ATT&CK techniques this control mitigates (171)

Weaknesses this control addresses (4)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-287Improper Authentication5,200+Requires unique identification and authentication of organizational users, directly preventing improper authentication.
CWE-306Missing Authentication for Critical Function3,300+Mandates authentication for organizational users and their associated processes, eliminating missing authentication for critical functions.
CWE-1392Use of Default Credentials100+Unique identification requirement prevents use of default or shared credentials by organizational users.
CWE-1390Weak Authentication88Enforces 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-2024-51567 KEV 10.010.00.8652good
CVE-2025-32433 KEV 10.010.00.9859good
CVE-2025-34028 KEV 10.010.00.9766good
CVE-2025-32975 KEV 10.010.00.0242good
CVE-2026-20127 KEV 10.010.00.8824good
CVE-2026-20182 KEV 10.010.00.9152good
CVE-2024-21410 KEV 9.99.80.1266good
CVE-2023-38096 9.99.80.8155good
CVE-2024-4358 KEV 9.99.80.9748good
CVE-2024-5910 KEV 9.99.80.9178good
CVE-2024-7593 KEV 9.99.80.9999good
CVE-2024-47575 KEV 9.99.80.9495good
CVE-2024-0012 KEV 9.99.80.9970good
CVE-2024-11680 KEV 9.99.80.9156good
CVE-2024-53704 KEV 9.99.80.9513good
CVE-2025-1044 9.99.80.7530good
CVE-2024-54085 KEV 9.99.80.6083good
CVE-2025-31161 KEV 9.99.80.9995good
CVE-2025-3248 KEV 9.99.81.0000good
CVE-2025-61882 KEV 9.99.80.9972good
CVE-2025-61757 KEV 9.99.80.8831good
CVE-2026-24423 KEV 9.99.80.8769good
CVE-2026-33017 KEV 9.99.80.9618good
CVE-2026-39987 KEV 9.99.80.9658good
CVE-2026-41940 KEV9.99.80.9811good

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