CVE-2019-4227

Name: CVE-2019-4227
Creator: NVD / NIST
Published: 2019-10-04T14:15:11.327+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.3/10EPSS 1.20%

Last modified Jun 17, 2026

CVE-2019-4227 is a high-severity vulnerability rated 7.3/10 on the CVSS scale. IBM MQ 8.0.0.4 - 8.0.0.12, 9.0.0.0 - 9.0.0.6, 9.1.0.0 - 9.1.0.2, and 9.1.0 - 9.1.2 AMQP Listeners could allow an unauthorized user to conduct a session fixation attack due to clients not being disconnected as they should. IBM X-Force ID: 159352.. EPSS estimates a 1.20% chance of exploitation in the next 30 days.

Description

IBM MQ 8.0.0.4 - 8.0.0.12, 9.0.0.0 - 9.0.0.6, 9.1.0.0 - 9.1.0.2, and 9.1.0 - 9.1.2 AMQP Listeners could allow an unauthorized user to conduct a session fixation attack due to clients not being disconnected as they should. IBM X-Force ID: 159352.

Metrics

CVSS 3.1

7.3/10

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

EPSS Probability

1.20%

64.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-384

Affected Software

Vendor	Product	Versions
Ibm	Mq	>= 8.0.0.4, <= 8.0.0.12
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

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/159352VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/886899Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/159352VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/886899Vendor Advisory

Timeline

Published: Oct 4, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-4227?

How severe is CVE-2019-4227?

CVE-2019-4227 has a CVSS score of 7.3/10 (HIGH severity). The EPSS model estimates a 1.20% probability of exploitation in the next 30 days.

How do I fix CVE-2019-4227?

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-2019-4227?

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

Scan your code now

Source: NVD / NIST