What is CVE-2021-20537?

CVE-2021-20537 is a medium-severity vulnerability in Docker, classified under Use of Hard-coded Credentials. CVSS score: 6.5/10. Published 2021-07-15.

How severe is CVE-2021-20537?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Docker

CVE-2021-20537

IBM Security Verify Access Docker 10.0.0 contains hard-coded credentials, such as a password or cryptographic key, which it uses for its own inbound authentication, outbound communication to external components, or encryption of internal data. IBM X-Force ID:198918

Published 2021-07-15 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.007 (50.6th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 50.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Docker
IBM Security Verify Access — versions 10.0.0
IBM Security Verify Access Docker — versions 10.0.0

Weakness classification (CWE)

CWE-798 — Use of Hard-coded Credentials

References

www.ibm.com/support/pages/node/6471895 (Patch, Vendor Advisory)
exchange.xforce.ibmcloud.com/vulnerabilities/198918 (VDB Entry, vdb-entry, Vendor Advisory)

Frequently asked questions

What is CVE-2021-20537?: CVE-2021-20537 is a medium-severity vulnerability in Docker, classified under Use of Hard-coded Credentials. CVSS score: 6.5/10. Published 2021-07-15.
How severe is CVE-2021-20537?: Medium severity. CVSS v3 base score is 6.5 out of 10.