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5.4 Medium

CVE-2026-12538 IBM MQ Appliance is affected by an improper validation vulnerability

Description

IBM MQ 9.4.0.0 to 9.4.0.26, 9.4.1.0 to 9.4.5.3, and 10.0.0.1 to 10.0.0.5 could allow an authenticated attacker to obtain sensitive information or cause a denial of service due to improper validation of message header structure length fields.

CVSS 3.1 detail

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

Exploitable remotely over the network, with an ordinary account and without any user action; the impact on data or service is limited.

Attack vector
Network
Attack complexity
Low
Privileges required
Low
Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
Low

Affected products and versions

Product Affected versions Fixed in
MQ Appliance 10.0 10.0.0.1 → 10.0.0.5 No fix stated
MQ Appliance 9.4 9.4.0.0 → 9.4.5.3 No fix stated
The 36 CVEs of MQ Appliance →
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