CVE-2020-4319

Name: CVE-2020-4319
Creator: NVD / NIST
Published: 2020-07-28T12:15:12.27+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.3/10EPSS 0.75%

Last modified Jun 17, 2026

CVE-2020-4319 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. IBM MQ, IBM MQ Appliance, and IBM MQ for HPE NonStop 8.0, 9.1 LTS, and 9.1 CD could allow under special circumstances, an authenticated user to obtain sensitive information due to a data leak from an error message within the pre-v7 pubsub logic. IBM X-Force ID: 177402.. EPSS estimates a 0.75% chance of exploitation in the next 30 days.

Description

IBM MQ, IBM MQ Appliance, and IBM MQ for HPE NonStop 8.0, 9.1 LTS, and 9.1 CD could allow under special circumstances, an authenticated user to obtain sensitive information due to a data leak from an error message within the pre-v7 pubsub logic. IBM X-Force ID: 177402.

Metrics

CVSS 3.1

4.3/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

EPSS Probability

0.75%

50.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-209

Affected Software

Vendor	Product	Versions
Ibm	Mq Appliance	>= 8.0, < 8.0.0.15
Ibm	Mq Appliance	>= 9.1.0.0, < 9.1.0.6
Ibm	Mq Appliance	>= 9.1.0.0, < 9.2.0.0

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/177402VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/6252777Patch, Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/177402VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/6252777Patch, Vendor Advisory

Timeline

Published: Jul 28, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-4319?

How severe is CVE-2020-4319?

CVE-2020-4319 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.75% probability of exploitation in the next 30 days.

How do I fix CVE-2020-4319?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-4319?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST