Remote Code Execution Vulnerability in IBM MQ by IBM
CVE-2026-12351

9.8CRITICAL

Key Information:

Vendor

IBM
Status
MQ
Vendor
CVE Published:
15 September 2026

What is CVE-2026-12351?

A vulnerability in IBM MQ allows remote attackers to execute arbitrary code due to improper handling of JNDI lookups in the IVT application. When deployed, this flaw could be exploited to gain unauthorized access and control over the affected systems, potentially compromising sensitive data and operations. Organizations using versions 9.3 and 9.4 of IBM MQ should take immediate action to apply relevant patches and mitigate this risk.

Affected Version(s)

MQ 9.3.0.0 <= 9.3.0.41 LTS

MQ 9.3.0.0 <= 9.3.5.1 CD

MQ 9.4.0.0 <= 9.4.0.25 LTS

References

https://www.ibm.com/support/pages/node/7284541
vendor-advisorypatch

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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