Buffer Overflow Vulnerability in IBM MQ Product by IBM
CVE-2026-12727

4.3MEDIUM

Key Information:

Vendor

IBM
Status
MQ Operator
MQ Advanced Container Images
Vendor
CVE Published:
19 October 2026

What is CVE-2026-12727?

IBM MQ is vulnerable to a buffer overflow that may allow an authenticated attacker to manipulate the processing of specially crafted object names. This flaw could lead to potential process instability, impacting the efficiency and reliability of the messaging service. It is crucial for users of affected versions to apply patches released by IBM to mitigate this security risk.

Affected Version(s)

MQ Advanced container images 9.4.0.6-r1

MQ Advanced container images 9.4.0.6-r2

MQ Advanced container images 9.4.0.7-r1

References

https://www.ibm.com/support/pages/node/7292667
vendor-advisorypatch

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.