CVE-2026-12550
IBM MQ is affected by a denial of service vulnerability
CVSS Score
5.4
EPSS Score
0.0%
EPSS Percentile
0th
IBM MQ 9.2.0.0 through 9.2.0.44 LTS, 9.3.0.0 through 9.3.0.42 LTS, 9.4.0.0 through 9.4.0.26 LTS, 9.4.0.0 through 9.4.5.1 CD, and 10.0.0.0 through 10.0.0.5 LTS and CD could allow an authenticated attacker to obtain sensitive information or cause a denial of service due to improper validation of message selection parameters.
| CWE | CWE-122 |
| Vendor | ibm |
| Product | mq |
| Published | Nov 4, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
Low
Affected Versions
IBM / MQ
9.2.0.0 ≤ 9.2.0.44 9.3.0.0 ≤ 9.3.0.42 9.4.0.0 ≤ 9.4.0.26 9.4.0.0 ≤ 9.4.5.1 10.0.0.0 ≤ 10.0.0.5