What is CVE-2022-22321?

CVE-2022-22321 is a medium-severity vulnerability in IBM Mq, classified under Inadequate Encryption Strength. CVSS score: 5.5/10. Published 2022-03-01.

How severe is CVE-2022-22321?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Is CVE-2022-22321 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in IBM Mq

CVE-2022-22321

IBM MQ Appliance 9.2 CD and 9.2 LTS local messaging users stored with a password hash that provides insufficient protection. IBM X-Force ID: 218368.

Published 2022-03-01 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.002 (5.0th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 5th percentile — 5.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

IBM Mq
IBM Mq Appliance — versions 9.2 LTS, 9.2 CD

Weakness classification (CWE)

CWE-326 — Inadequate Encryption Strength

Public proof-of-concept exploits

ARPSyndicate/cvemon

References

www.ibm.com/support/pages/node/6560042 (Patch, Vendor Advisory)
exchange.xforce.ibmcloud.com/vulnerabilities/218368 (VDB Entry, vdb-entry, Vendor Advisory)

Frequently asked questions

What is CVE-2022-22321?: CVE-2022-22321 is a medium-severity vulnerability in IBM Mq, classified under Inadequate Encryption Strength. CVSS score: 5.5/10. Published 2022-03-01.
How severe is CVE-2022-22321?: Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2022-22321 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.