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Vulnerability record · CVE-2026-11378 · published 18 September 2026

CVE-2026-11378: Ibm mq integer overflow vulnerability

Ibm · Mq

IBM MQ could allow an authenticated attacker to cause a denial of service or potentially execute arbitrary code due to an integer overflow in distribution list processing.

8.8 CVSS 3.1 High EPSS 0.34% · top 75.6% CWE-190 · Integer overflow
8.8CVSS 3.1 base score
0.34%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
23 Sep 2026Last modified by NVD

Description

IBM MQ could allow an authenticated attacker to cause a denial of service or potentially execute arbitrary code due to an integer overflow in distribution list processing.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.ibm.com/support/pages/node/7284945 PatchVendor Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-11378), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.