What is CVE-2022-22356?

CVE-2022-22356 is a medium-severity vulnerability in IBM Mq Appliance, classified under Observable Discrepancy. CVSS score: 6.5/10. Published 2022-04-05.

How severe is CVE-2022-22356?

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

Vulnerability in IBM Mq Appliance

CVE-2022-22356

IBM MQ Appliance 9.2 CD and 9.2 LTS could allow an attacker to enumerate account credentials due to an observable discrepancy in valid and invalid login attempts. IBM X-Force ID: 220487.

Published 2022-04-05 · 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: 0.009 (58.3th percentile), scored 2026-10-20.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 58.3% 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 Mq Appliance — versions 9.2 LTS, 9.2 CD
IBM Mq Appliance — versions 9.2.0.0

Weakness classification (CWE)

CWE-203 — Observable Discrepancy

References

www.ibm.com/support/pages/node/6564711 (Patch, Vendor Advisory)
exchange.xforce.ibmcloud.com/vulnerabilities/220487 (VDB Entry, vdb-entry, Vendor Advisory)

Frequently asked questions

What is CVE-2022-22356?: CVE-2022-22356 is a medium-severity vulnerability in IBM Mq Appliance, classified under Observable Discrepancy. CVSS score: 6.5/10. Published 2022-04-05.
How severe is CVE-2022-22356?: Medium severity. CVSS v3 base score is 6.5 out of 10.