What is CVE-2021-20583?

CVE-2021-20583 is a medium-severity vulnerability in IBM Security Verify, classified under Improper Input Validation. CVSS score: 4.9/10. Published 2021-06-25.

How severe is CVE-2021-20583?

Medium severity. CVSS v3 base score is 4.9 out of 10.

Improper input validation in IBM Security Verify

CVE-2021-20583

IBM Security Verify (IBM Security Verify Privilege Vault 10.9.66) could disclose sensitive information through an HTTP GET request by a privileged user due to improper input validation.. IBM X-Force ID: 199396.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2021-06-25 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.009 (58.2th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 58.2% 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 Verify
IBM Security Verify Privilege Vault — versions 10.9.66

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

www.ibm.com/support/pages/node/6467045 (Patch, Vendor Advisory)
exchange.xforce.ibmcloud.com/vulnerabilities/199396 (VDB Entry, vdb-entry)

Frequently asked questions

What is CVE-2021-20583?: CVE-2021-20583 is a medium-severity vulnerability in IBM Security Verify, classified under Improper Input Validation. CVSS score: 4.9/10. Published 2021-06-25.
How severe is CVE-2021-20583?: Medium severity. CVSS v3 base score is 4.9 out of 10.