What is CVE-2021-20582?

CVE-2021-20582 is a medium-severity vulnerability in IBM Security Secret Server, classified under Information Disclosure. CVSS score: 5.3/10. Published 2021-09-14.

How severe is CVE-2021-20582?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Information disclosure in IBM Security Secret Server

CVE-2021-20582

IBM Security Secret Server up to 11.0 stores sensitive information in URL parameters. This may lead to information disclosure if unauthorized parties have access to the URLs via server logs, referrer header or browser history. IBM X-Force ID: 199328.

Vulnerability class: Information Disclosure

Published 2021-09-14 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.009 (57.1th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 57.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

IBM Security Secret Server — versions 10.0
IBM Security Secret Server
Microsoft Windows

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

www.ibm.com/support/pages/node/6488459 (Vendor Advisory)
exchange.xforce.ibmcloud.com/vulnerabilities/199328 (VDB Entry, vdb-entry, Vendor Advisory)

Frequently asked questions

What is CVE-2021-20582?: CVE-2021-20582 is a medium-severity vulnerability in IBM Security Secret Server, classified under Information Disclosure. CVSS score: 5.3/10. Published 2021-09-14.
How severe is CVE-2021-20582?: Medium severity. CVSS v3 base score is 5.3 out of 10.