What is CVE-2021-20411?

CVE-2021-20411 is a high-severity vulnerability in IBM Security Verify Information Queue, classified under Incorrect Resource Transfer Between Spheres. CVSS score: 8.1/10. Published 2021-02-12.

How severe is CVE-2021-20411?

High severity. CVSS v3 base score is 8.1 out of 10.

Vulnerability in IBM Security Verify Information Queue

CVE-2021-20411

IBM Security Verify Information Queue 1.0.6 and 1.0.7 could allow a user to impersonate another user on the system due to incorrectly updating the session identifier. IBM X-Force ID: 198191.

Published 2021-02-12 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.004 (36.7th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 36.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

IBM Security Verify Information Queue — versions 1.0.6, 1.0.7
IBM Security Verify Information Queue — versions 1.0.6, 1.0.7
Linux Kernel

Weakness classification (CWE)

CWE-669 — Incorrect Resource Transfer Between Spheres

References

www.ibm.com/support/pages/node/6414777 (Patch, Vendor Advisory)
exchange.xforce.ibmcloud.com/vulnerabilities/196191 (VDB Entry, vdb-entry, Vendor Advisory)

Frequently asked questions

What is CVE-2021-20411?: CVE-2021-20411 is a high-severity vulnerability in IBM Security Verify Information Queue, classified under Incorrect Resource Transfer Between Spheres. CVSS score: 8.1/10. Published 2021-02-12.
How severe is CVE-2021-20411?: High severity. CVSS v3 base score is 8.1 out of 10.