CVE-2019-4656

6.5 MEDIUM 1% exploit odds Fix listed

What it is

IBM MQ and IBM MQ Appliance 7.1, 7.5, 8.0, 9.0 LTS, 9.1 LTS, and 9.1 CD is vulnerable to a denial of service attack that would allow an authenticated user to crash the queue and require a restart due to an error processing error messages. IBM X-Force ID: 170967.

At a glance

Exploitability: Can be exploited over the network with a low-privilege account. High risk of service disruption.
Exploit odds: 1.4% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2020-03-16 16:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 02:36 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 1.4% in the next 30 days (EPSS).
Severity: 6.5 MEDIUM (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2020-03-16 16:15 UTC
Last modified: 2026-06-17 02:36 UTC
Exploit probability: 1.4% · EPSS, next 30 days
Record status: Modified

Affected

IBM Mq < 8.0.0.14
IBM Mq ≤ 9.0.0.9
IBM Mq < 9.1.4
IBM Mq < 9.1.0.4
IBM Mq Appliance < 8.0.0.14
IBM Websphere Mq ≤ 7.5.0.9

Attack profile CVSS 3.1 · 6.5

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: None
Availability: High

Raw vector

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

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2019-4656.md and follow it. Check whether this project is affected by CVE-2019-4656. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

· More options · Status badge

Download Square Reddit

Fix and advisories

References

NVD record · CVE.org record