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Vulnerability record · CVE-2026-12150 · published 15 September 2026

CVE-2026-12150: Stack-based buffer overflow vulnerability

IBM MQ 9.1.0.0 through 9.1.0.37 LTS, 9.2.0.0 through 9.2.0.43 LTS, 9.3.0.0 through 9.3.0.41 LTS, 9.3.0.0 through 9.3.5.1 CD, 9.4.0.0 through 9.4.0.25 LTS, 9.4.0.0 through 9.4.5.1 CD, and 10.0.0.0 could allow a remote attacker with a trusted TLS client certificate to cause a denial of service and potentially affect memory contents due to improper validation of deeply nested certificate data during TLS certificate processing.

7.0 CVSS 3.1 High EPSS 0.17% · top 94.5% CWE-121 · Stack-based buffer overflow Awaiting Analysis
7.0CVSS 3.1 base score
0.17%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
1References
17 Sep 2026Last modified by NVD

Description

IBM MQ 9.1.0.0 through 9.1.0.37 LTS, 9.2.0.0 through 9.2.0.43 LTS, 9.3.0.0 through 9.3.0.41 LTS, 9.3.0.0 through 9.3.5.1 CD, 9.4.0.0 through 9.4.0.25 LTS, 9.4.0.0 through 9.4.5.1 CD, and 10.0.0.0 could allow a remote attacker with a trusted TLS client certificate to cause a denial of service and potentially affect memory contents due to improper validation of deeply nested certificate data during TLS certificate processing.

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

References

LinkTags
https://www.ibm.com/support/pages/node/7284911

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Source: NIST National Vulnerability Database (record CVE-2026-12150), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.