What is CVE-2020-4958?

CVE-2020-4958 is a critical-severity vulnerability in IBM Security Identity Governance And Intelligence, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2021-01-21.

How severe is CVE-2020-4958?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Auth bypass in IBM Security Identity Governance And Intelligence

CVE-2020-4958

IBM Security Identity Governance and Intelligence 5.2.6 does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources. IBM X-Force ID: 192209.

Vulnerability class: Broken Authentication

Published 2021-01-21 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.017 (76.2th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 76.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000

Affected products

IBM Security Identity Governance And Intelligence — versions 5.2.6
IBM Security Identity Governance And Intelligence — versions 5.2.6

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

www.ibm.com/support/pages/node/6403247 (Vendor Advisory)
exchange.xforce.ibmcloud.com/vulnerabilities/192209 (VDB Entry, vdb-entry, Vendor Advisory)

Frequently asked questions

What is CVE-2020-4958?: CVE-2020-4958 is a critical-severity vulnerability in IBM Security Identity Governance And Intelligence, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2021-01-21.
How severe is CVE-2020-4958?: Critical severity. CVSS v3 base score is 9.8 out of 10.