IBM MQ could allow an authenticated attacker to cause a denial of service by sending specially crafted multicast status messages that trigger a NULL pointer dereference.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
IBM MQ Operator unaffected
Version Status Constraints
3.2.0 affected ≤ 3.2.29
3.3.0 affected < 3.4.0
3.4.1 affected —
3.5.0 affected —
3.5.1 affected ≤ 3.5.3
3.6.0 affected ≤ 3.6.4
3.7.0 affected ≤ 3.7.2
3.8.0 affected —
3.8.1 affected —
3.9.0 affected —
3.9.1 affected —
3.9.2 affected —
4.0.0 affected —
4.0.1 affected —
4.0.2 affected —
4.0.3 affected —
4.0.4 affected —
2.0.0 affected ≤ 2.0.29
IBM MQ Advanced container images unaffected
Version Status Constraints
9.4.0.6-r1 affected ≤ r1, 9.4.0.6-r2, 9.4.0.7-r1, 9.4.0.10-r1, 9.4.0.10-r2, 9.4.0.11-r1, 9.4.0.11-r2, 9.4.0.11-r3, 9.4.0.12-r1, 9.4.0.15-r1 - 9.4.0.15-r4, 9.4.0.16-r1, 9.4.0.16-r2, 9.4.0.17-r1, 9.4.0.17-r2, 9.4.0.20-r1, 9.4.0.21-r1, 9.4.0.21-r2, 9.4.0.25-r1 - 9.4.0.25-r3, 9.4.0.26-r1CD: 9.4.1.0-r1, 9.4.1.0-r2, 9.4.1.1-r1, 9.4.2.0-r1, 9.4.2.0-r2, 9.4.2.1-r1, 9.4.2.1-r2, 9.4.3.0-r1, 9.4.3.0-r2, 9.4.3.1-r1 - 9.4.3.1-r3, 9.4.4.0-r1 - 9.4.4.0-r4, 9.4.4.1-r1, 9.4.5.0-r1, 9.4.5.0-r2, 9.4.5.1-r1, 10.0.0.0-r1 - 10.0.0.0-r4, 10.0.0.5-r1LTS: 9.3.0.0-r1, 9.3.0.0-r2, 9.3.0.0-r3, 9.3.0.1-r1, 9.3.0.1-r2, 9.3.0.1-r3, 9.3.0.1-r4, 9.3.0.3-r1, 9.3.0.4-r1, 9.3.0.4-r2, 9.3.0.5-r1, 9.3.0.5-r2, 9.3.0.5-r3, 9.3.0.6-r1, 9.3.0.10-r1, 9.3.0.10-r2, 9.3.0.11-r1,9.3.0.11-r2, 9.3.0.15-r1, 9.3.0.16-r1, 9.3.0.16-r2, 9.3.0.17-r1, 9.3.0.17-r2, 9.3.0.17-r3, 9.3.0.20-r1, 9.3.0.20-r2, 9.3.0.21-r1, 9.3.0.21-r2, 9.3.0.21-r3, 9.3.0.25-r1, 9.4.0.0-r1, 9.4.0.0-r2, 9.4.0.0-r3, 9.4.0.5-r1, 9.4.0.5-r2
9.4.0.6-r2 affected —
9.4.0.7-r1 affected —
9.4.0.10-r1 affected —
9.4.0.10-r2 affected —
9.4.0.11-r1 affected —
9.4.0.11-r2 affected —
9.4.0.11-r3 affected —
9.4.0.12-r1 affected —
9.4.0.15-r1 affected ≤ 9.4.0.15-r4
9.4.0.16-r1 affected —
9.4.0.16-r2 affected —
9.4.0.17-r1 affected —
9.4.0.17-r2 affected —
9.4.0.20-r1 affected —
9.4.0.21-r1 affected —
9.4.0.21-r2 affected —
9.4.0.25-r1 affected ≤ 9.4.0.25-r3
9.4.0.26-r1 affected —
9.4.1.0-r1 affected —
9.4.1.0-r2 affected —
9.4.1.1-r1 affected —
9.4.2.0-r1 affected —
9.4.2.0-r2 affected —
9.4.2.1-r1 affected —
9.4.2.1-r2 affected —
9.4.3.0-r1 affected —
9.4.3.0-r2 affected —
9.4.3.1-r1 affected ≤ 9.4.3.1-r3
9.4.4.0-r1 affected —
9.4.4.1-r1 affected —
9.4.5.0-r1 affected —
9.4.5.0-r2 affected —
9.4.5.1-r1 affected —
10.0.0.0-r1 affected ≤ 10.0.0.0-r4
10.0.0.5-r1 affected —
9.3.0.0-r1 affected —
9.3.0.0-r2 affected —
9.3.0.0-r3 affected —
9.3.0.1-r1 affected —
9.3.0.1-r2 affected —
9.3.0.1-r3 affected —
9.3.0.1-r4 affected —
9.3.0.3-r1 affected —
9.3.0.4-r1 affected —
9.3.0.4-r2 affected —
9.3.0.5-r1 affected —
9.3.0.5-r2 affected —
9.3.0.5-r3 affected —
9.3.0.6-r1 affected —
9.3.0.10-r1 affected —
9.3.0.10-r2 affected —
9.3.0.11-r1 affected —
9.3.0.11-r2 affected —
9.3.0.15-r1 affected —
9.3.0.16-r1 affected —
9.3.0.16-r2 affected —
9.3.0.17-r1 affected —
9.3.0.17-r2 affected —
9.3.0.17-r3 affected —
9.3.0.20-r1 affected —
9.3.0.20-r2 affected —
9.3.0.21-r1 affected —
9.3.0.21-r2 affected —
9.3.0.21-r3 affected —
9.3.0.25-r1 affected —
9.4.0.0-r1 affected —
9.4.0.0-r2 affected —
9.4.0.0-r3 affected —
9.4.0.5-r1 affected —
9.4.0.5-r2 affected —

No data.

No data.

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Vendors Products
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Advisories

No advisories yet.

Fixes

Solution

Issues mentioned by this security bulletin are addressed in - * IBM MQ Operator v4.1.0 https://www.ibm.com/docs/en/ibm-mq/10.0.x CD release that included IBM supplied MQ Advanced 10.0.1.0-r1 https://www.ibm.com/docs/en/ibm-mq/10.0.x container image.  * IBM MQ Operator  v4.0.5 https://www.ibm.com/docs/en/ibm-mq/10.0.x SC2 release that included IBM supplied MQ Advanced 10.0.0.5-r2 https://www.ibm.com/docs/en/ibm-mq/10.0.x container image.  * IBM MQ Operator v3.2.30 https://www.ibm.com/docs/en/ibm-mq/9.4.x SC2 release that included IBM supplied MQ Advanced 9.4.0.26-r2 https://www.ibm.com/docs/en/ibm-mq/9.4.x container image. * IBM MQ Container 10.0.1.0-r1 https://www.ibm.com/docs/en/ibm-mq/10.0.x and  10.0.0.5-r2 https://www.ibm.com/docs/en/ibm-mq/10.0.x release. IBM strongly recommends applying the latest container images.  IBM MQ Operator v4.1.0 CD release details: Image Fix Version Registry Image Location ibm-mq-operator v4.1.0 icr.io icr.io/cpopen/ibm-mq-operator@sha256:ed9a217869637c8749270fd485517ea62c8dffbd198a8f7090042ebbeb5bd127 ibm-mqadvanced-server 10.0.1.0-r1 cp.icr.io cp.icr.io/cp/ibm-mqadvanced-server@sha256:06f0892b36e879d0f8957477deeabfe2b4e0fda13f64792edbe7825caf7b77e3 ibm-mqadvanced-server-dev 10.0.1.0-r1 icr.io icr.io/ibm-messaging/ibm-mqadvanced-server-dev@sha256:129d1d736e94bae071039136585734b7ccc6cfd6e1cc7dacb9af59e60d0a57c2 IBM MQ Operator v4.0.5 SC2 release details: Image Fix Version Registry Image Location ibm-mq-operator v4.0.5 icr.io icr.io/cpopen/ibm-mq-operator@sha256:1109597707dfb3fbde274e39698f08a9011f13ca75746a30414e246459571930 ibm-mqadvanced-server 10.0.0.5-r2 cp.icr.io cp.icr.io/cp/ibm-mqadvanced-server@sha256:0218cf9da8c763b502afb02e7c0406654ac64fdd015410d7b73496fbed89a652 ibm-mqadvanced-server-dev 10.0.0.5-r2 icr.io icr.io/ibm-messaging/ibm-mqadvanced-server-dev@sha256:6610f615ac4bf129668b70a9ae288386ea6bee87112056b83792ad2f901bcf9b IBM MQ Operator v3.2.30 SC2 release details: Image Fix Version Registry Image Location ibm-mq-operator v3.2.30 icr.io icr.io/cpopen/ibm-mq-operator@sha256:57dda3eb0391e540ff18029fdcd44a14951a73860bdc7544be5879a8ca49fc40 ibm-mqadvanced-server 9.4.0.26-r2 cp.icr.io cp.icr.io/cp/ibm-mqadvanced-server@sha256:4fc5474a0cd9da504bd4bd26ce5c0b91e088656aa56decb315b450ac7868b7e8 ibm-mqadvanced-server-integration 9.4.0.26-r2 cp.icr.io cp.icr.io/cp/ibm-mqadvanced-server-integration@sha256:a6656d4b9c7db64dd9247c22a00607baf2c9141392d7bf5860a93325604f26ad ibm-mqadvanced-server-dev 9.4.0.26-r2 icr.io icr.io/ibm-messaging/ibm-mqadvanced-server-dev@sha256:abf4c7e931f77aa2aeb340ad054edb35c0f382bf4a7c776d838afab23106b06a IBM MQ Container 10.0.1.0-r1 release details: Image Fix Version Registry Image Location ibm-mqadvanced-server 10.0.1.0-r1 cp.icr.io cp.icr.io/cp/ibm-mqadvanced-server@sha256:06f0892b36e879d0f8957477deeabfe2b4e0fda13f64792edbe7825caf7b77e3 ibm-mqadvanced-server-dev 10.0.1.0-r1 icr.io icr.io/ibm-messaging/ibm-mqadvanced-server-dev@sha256:129d1d736e94bae071039136585734b7ccc6cfd6e1cc7dacb9af59e60d0a57c2 IBM MQ Container 10.0.0.5-r2 release details: Image Fix Version Registry Image Location ibm-mqadvanced-server 10.0.0.5-r2 cp.icr.io cp.icr.io/cp/ibm-mqadvanced-server@sha256:0218cf9da8c763b502afb02e7c0406654ac64fdd015410d7b73496fbed89a652 ibm-mqadvanced-server-dev 10.0.0.5-r2 icr.io icr.io/ibm-messaging/ibm-mqadvanced-server-dev@sha256:6610f615ac4bf129668b70a9ae288386ea6bee87112056b83792ad2f901bcf9b

Workaround

No workaround given by the vendor.

References
Link Providers
https://www.ibm.com/support/pages/node/7292667 cve-icon cve-icon
History

Mon, 19 Oct 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Mon, 19 Oct 2026 16:45:00 +0000

Type Values Removed Values Added
Description IBM MQ could allow an authenticated attacker to cause a denial of service by sending specially crafted multicast status messages that trigger a NULL pointer dereference.
Title IBM MQ Deserialization of Untrusted Data
First Time appeared Ibm
Ibm mq Advanced Container Images
Ibm mq Operator
Weaknesses CWE-502
CPEs cpe:2.3:a:ibm:mq_advanced_container_images:*:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:10.0.0.5-r1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.3.0.0-r1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.3.0.0-r2:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.3.0.0-r3:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.3.0.1-r1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.3.0.1-r2:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.3.0.1-r3:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.3.0.1-r4:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.3.0.10-r1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.3.0.10-r2:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.3.0.11-r1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.3.0.11-r2:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.3.0.15-r1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.3.0.16-r1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.3.0.16-r2:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.3.0.17-r1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.3.0.17-r2:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.3.0.17-r3:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.3.0.20-r1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.3.0.20-r2:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.3.0.21-r1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.3.0.21-r2:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.3.0.21-r3:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.3.0.25-r1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.3.0.3-r1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.3.0.4-r1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.3.0.4-r2:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.3.0.5-r1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.3.0.5-r2:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.3.0.5-r3:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.3.0.6-r1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.4.0.0-r1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.4.0.0-r2:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.4.0.0-r3:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.4.0.10-r1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.4.0.10-r2:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.4.0.11-r1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.4.0.11-r2:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.4.0.11-r3:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.4.0.12-r1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.4.0.16-r1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.4.0.16-r2:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.4.0.17-r1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.4.0.17-r2:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.4.0.20-r1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.4.0.21-r1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.4.0.21-r2:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.4.0.26-r1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.4.0.5-r1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.4.0.5-r2:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.4.0.6-r1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.4.0.6-r2:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.4.0.7-r1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.4.1.0-r1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.4.1.0-r2:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.4.1.1-r1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.4.2.0-r1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.4.2.0-r2:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.4.2.1-r1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.4.2.1-r2:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.4.3.0-r1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.4.3.0-r2:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.4.4.0-r1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.4.4.1-r1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.4.5.0-r1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.4.5.0-r2:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_advanced_container_images:9.4.5.1-r1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_operator:*:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_operator:3.4.1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_operator:3.5.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_operator:3.8.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_operator:3.8.1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_operator:3.9.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_operator:3.9.1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_operator:3.9.2:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_operator:4.0.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_operator:4.0.1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_operator:4.0.2:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_operator:4.0.3:*:*:*:*:*:*:*
cpe:2.3:a:ibm:mq_operator:4.0.4:*:*:*:*:*:*:*
Vendors & Products Ibm
Ibm mq Advanced Container Images
Ibm mq Operator
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: ibm

Published:

Updated: 2026-10-19T18:25:50.095Z

Reserved: 2026-06-12T18:26:07.559Z

Link: CVE-2026-12155

cve-icon Vulnrichment

Updated: 2026-10-19T18:25:45.935Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-19T17:17:17.447

Modified: 2026-10-19T20:55:02.217

Link: CVE-2026-12155

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-19T17:45:13Z

Weaknesses