IBM MQ denial of service

published 2023-05-05 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-30108

cvss: 7.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.9%; EPSS 0.9% chance of exploitation in 30 days, percentile 61%
public exploits: 0; none known

IBM MQ 9.2 CD, 9.2 LTS, 9.3 CD, and 9.3 LTS could allow a remote attacker to cause a denial of service due to an error processing invalid data. IBM X-Force ID: 248418.

Patch / fix

fixed in 1 links 1

ibm mq_appliance 9.2.0.11, 9.2.5.7, 9.3.0.5, 9.3.2.1

ibm.com/support/pages/node/6986563 advisory

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 21 mo ago (2025-01-29)

Exploit prediction

0.95% chance of exploitation in the next 30 days, higher than 61% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	5.9	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA ADP	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

IBM MQ

Classification

Weakness

CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-770 Allocation of Resources Without Limits or Throttling

References

ibm.com /support/pages/node/6986563
vendor-advisory, patch
exchange.xforce.ibmcloud.com /vulnerabilities/248418
vdb-entry, vendor-advisory

Sources

CVE List CVE-2023-26285
NVD CVE-2023-26285

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary