CVE-2020-4375

Name: CVE-2020-4375
Creator: NVD / NIST
Published: 2020-07-28T12:15:12.347+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.54%

Last modified Jun 17, 2026

CVE-2020-4375 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. IBM MQ, IBM MQ Appliance, IBM MQ for HPE NonStop 8.0, 9.1 CD, and 9.1 LTS could allow an attacker to cause a denial of service due to a memory leak caused by an error creating a dynamic queue. IBM X-Force ID: 179080.. EPSS estimates a 1.54% chance of exploitation in the next 30 days.

Description

IBM MQ, IBM MQ Appliance, IBM MQ for HPE NonStop 8.0, 9.1 CD, and 9.1 LTS could allow an attacker to cause a denial of service due to a memory leak caused by an error creating a dynamic queue. IBM X-Force ID: 179080.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

1.54%

71.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-401

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/179080VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/6252785Patch, Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/179080VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/6252785Patch, Vendor Advisory

Timeline

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

Frequently Asked Questions

What is CVE-2020-4375?

How severe is CVE-2020-4375?

CVE-2020-4375 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.54% probability of exploitation in the next 30 days.

How do I fix CVE-2020-4375?

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-2020-4375?

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

Scan your code now

Source: NVD / NIST