IBM MQ 7.1.0.0 - 7.1.0.9, 7.5.0.0 - 7.5.0.9, 8.0.0.0 - 8.0.0.11, 9.0.0.0 - 9.0.0.6, 9.1.0.0 - 9.1.0.2, and 9.1.1 - 9.1.2 is vulnerable to a…

published 2019-09-27 7y ago modified 2026-06-17 4mo ago also EUVD-2019-13748

cvss: 5.3; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.3%; EPSS 1.3% chance of exploitation in 30 days, percentile 71%
public exploits: 0; none known

IBM MQ 7.1.0.0 - 7.1.0.9, 7.5.0.0 - 7.5.0.9, 8.0.0.0 - 8.0.0.11, 9.0.0.0 - 9.0.0.6, 9.1.0.0 - 9.1.0.2, and 9.1.1 - 9.1.2 is vulnerable to a denial of service attack caused by a memory leak in the clustering code. IBM X-Force ID: 158337.

Patch / fix

links 1

ibm.com/support/pages/node/876772 advisory

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Exploit prediction

1.34% chance of exploitation in the next 30 days, higher than 71% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	3.0	5.3	CVSS:3.0/UI:N/S:U/I:N/A:H/C:N/AV:N/AC:H/PR:L/RC:C/E:U/RL:O
NVD	3.1	6.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CNA	3.0	5.3	CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD	2.0	4.0	AV:N/AC:L/Au:S/C:N/I:N/A:P

Affected products

IBM MQ

Classification

Weakness

CWE-401 Missing Release of Memory after Effective Lifetime

References

ibm.com /support/pages/node/876772
patch, vendor-advisory
exchange.xforce.ibmcloud.com /vulnerabilities/158337
vdb-entry, vendor-advisory

Sources

CVE List CVE-2019-4141
NVD CVE-2019-4141

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