CVE-2026-12351 IBM MQ - Remote Code Execution

IBM MQ 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 LTS, and 10.0.0.0 contain a remote code execution caused by unsafe JNDI lookup processing in IVT application deployment, letting remote attackers execute arbitrary code, exploit requires IVT application deployment.

CVSS base score 9.8 /10
Critical
CISA KEV
Not listed
Public exploit
None known
EPSS
0.48% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Remote Code Execution
Impact
Remote Code Execution
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
15 September 2026
Updated
15 October 2026
Weakness
CWE-74

Vendor fix

Update to the latest available version beyond 10.0.0.0 or apply vendor patches.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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