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: 04 July 2026 00:28 UTC

Cumulative inbound coverage

How completely the frameworks we cross-walk collectively cover this — the verdict is the strongest single mapping (overlapping partials are not summed); breadth shows the corroboration behind it.

Collective: mostly · 16 mapping(s) from 2 framework(s): ASVS 5.0 14 (partial) · CSF 2.0 2 (mostly)

See the full cumulative-coverage rollup →

Implementations targeting this control (2)

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 Authentication4,908Requires unique identification and authentication of organizational users, directly preventing improper authentication.
CWE-306Missing Authentication for Critical Function2,820Mandates authentication for organizational users and their associated processes, eliminating missing authentication for critical functions.
CWE-1392Use of Default Credentials104Unique identification requirement prevents use of default or shared credentials by organizational users.
CWE-1390Weak Authentication82Enforces 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-2025-252928.09.80.6379good
CVE-2022-317068.09.80.8708good
CVE-2026-201297.09.80.0072good
CVE-2026-17297.09.80.0058good
CVE-2025-632247.010.00.0072good
CVE-2025-104847.09.80.0040good
CVE-2023-543357.09.80.0496good
CVE-2026-218817.09.10.0043good
CVE-2026-218917.09.40.0217good
CVE-2025-213117.09.80.0235good
CVE-2025-13877.09.80.0054good
CVE-2025-271387.09.80.0054good
CVE-2024-129197.09.80.0054good
CVE-2025-664897.09.80.0080good
CVE-2026-337467.09.80.0030good
CVE-2024-112867.09.80.0059good
CVE-2026-311517.09.80.0038good
CVE-2026-308317.09.80.0033good
CVE-2026-15687.09.60.0014good
CVE-2025-124207.09.80.4549good
CVE-2025-83597.09.80.0046good
CVE-2025-7642 UPD7.09.80.0046good
CVE-2025-47158 UPD7.09.00.0067good
CVE-2024-298497.09.80.1667good
CVE-2025-302365.58.60.0034good

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