CVE-2026-12150
High
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.
SeverityHigh
CVSS7.0
Exploit probability—
Product
Ibm Mq
PublishedSep 15, 2026
First seenSep 15, 2026
Weakness typeCWE-121CWE-121
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| ibm mq | 9.1.0.0 ≤ v ≤ 9.1.0.37 LTS, 9.2.0.0 ≤ v ≤ 9.2.0.43 LTS, 9.3.0.0 ≤ v ≤ 9.3.0.41 LTS, 9.3.0.0 ≤ v ≤ 9.3.5.1 CD, 9.4.0.0 ≤ v ≤ 9.4.0.25 LTS, 9.4.0.0 ≤ v ≤ 9.4.5.1 CD, 10.0.0.0 | — |
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