CVE-2023-28513: IBM MQ denial of service

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-07-19 · updated 2026-06-17
Weakness: CWE-20

Description

IBM MQ 9.0 LTS, 9.1 LTS, 9.2 LTS, 9.3 LTS, 9.2 CD, and 9.3 CD and IBM MQ Appliance 9.2 LTS, 9.3 LTS, 9.2 CD, and 9.2 LTS, under certain configurations, is vulnerable to a denial of service attack caused by an error processing messages. IBM X-Force ID: 250397.

Affected products

IBM MQ: 9.0.0.0, 9.1.0.0, 9.2.0, 9.3.0
IBM MQ Appliance: 9.2.0.0, 9.3.0.0

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/250397
https://www.ibm.com/support/pages/node/7007421
https://www.ibm.com/support/pages/node/7007731
https://exchange.xforce.ibmcloud.com/vulnerabilities/250397
https://www.ibm.com/support/pages/node/7007421
https://www.ibm.com/support/pages/node/7007731

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