CVE-2019-4261

Name: CVE-2019-4261
Creator: NVD / NIST
Published: 2019-08-05T14:15:12.007+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 2.62%

Last modified Jun 17, 2026

CVE-2019-4261 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. IBM WebSphere MQ V7.1, 7.5, IBM MQ V8, IBM MQ V9.0LTS, IBM MQ V9.1 LTS, and IBM MQ V9.1 CD are vulnerable to a denial of service attack caused by specially crafted messages. IBM X-Force ID: 160013.. EPSS estimates a 2.62% chance of exploitation in the next 30 days.

Description

IBM WebSphere MQ V7.1, 7.5, IBM MQ V8, IBM MQ V9.0LTS, IBM MQ V9.1 LTS, and IBM MQ V9.1 CD are vulnerable to a denial of service attack caused by specially crafted messages. IBM X-Force ID: 160013.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

2.62%

83.5th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Ibm	Mq	>= 8.0.0.0, <= 8.0.0.11
Ibm	Mq	>= 9.0.0.0, <= 9.0.0.6
Ibm	Mq	>= 9.1.0, <= 9.1.2
Ibm	Mq	>= 9.1.0.0, <= 9.1.0.2
Ibm	Websphere Mq	>= 7.1.0.0, <= 7.1.0.9
Ibm	Websphere Mq	>= 7.5, <= 7.5.0.9

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/160013VDB Entry, Vendor Advisory
https://www.ibm.com/support/docview.wss?uid=ibm10886887Patch, Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/160013VDB Entry, Vendor Advisory
https://www.ibm.com/support/docview.wss?uid=ibm10886887Patch, Vendor Advisory

Timeline

Published: Aug 5, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-4261?

IBM WebSphere MQ V7.1, 7.5, IBM MQ V8, IBM MQ V9.0LTS, IBM MQ V9.1 LTS, and IBM MQ V9.1 CD are vulnerable to a denial of service attack caused by specially crafted messages. IBM X-Force ID: 160013.

How severe is CVE-2019-4261?

CVE-2019-4261 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 2.62% probability of exploitation in the next 30 days.

How do I fix CVE-2019-4261?

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-2019-4261?

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

Scan your code now

Source: NVD / NIST