CVE-2022-43902 IBM MQ denial of service

Medium 6.5 Published 1 Mar 2023 Updated 6 Mar 2025

Attackers can cause a denial of service in IBM MQ by sending specially crafted PCF or MQSC messages.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2022-43902?

CVE-2022-43902 is a medium-severity denial of service vulnerability in IBM MQ, published on 1 Mar 2023. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

IBM MQ 9.2 CD, 9.2 LTS, 9.3 CD, and 9.3 LTS is vulnerable to a denial of service attack caused by specially crafted PCF or MQSC messages. IBM X-Force ID: 240832.

Which versions are affected by CVE-2022-43902?

It affects 1 product.

Products include Ibm Mq Appliance.

How do I fix CVE-2022-43902?

No fix has been published for CVE-2022-43902 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2022-43902 being exploited?

There is no known exploitation of CVE-2022-43902 in the wild and no public exploit code.

Sources

Also known as GHSA-gmcv-4j6w-rhjx.