CVEDB API

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2026-12343

IBM MQ could allow an authenticated attacker to cause a denial of service due to improper validation of RFH2 message header fields in queued publish/subscribe operations.

Exploit prediction scoring system (EPSS) score

EPSS Score 0.002

EPSS Ranking 14.3%

CVSS Severity

CVSS v3 Score 6.5

References

https://www.ibm.com/support/pages/node/7292667

Products affected by CVE-2026-12343

Ibm » Mq Operator » Version: 2.0.0

cpe:2.3:a:ibm:mq_operator:2.0.0
Ibm » Mq Operator » Version: 2.0.10

cpe:2.3:a:ibm:mq_operator:2.0.10
Ibm » Mq Operator » Version: 2.0.11

cpe:2.3:a:ibm:mq_operator:2.0.11
Ibm » Mq Operator » Version: 2.0.12

cpe:2.3:a:ibm:mq_operator:2.0.12
Ibm » Mq Operator » Version: 2.0.13

cpe:2.3:a:ibm:mq_operator:2.0.13
Ibm » Mq Operator » Version: 2.0.14

cpe:2.3:a:ibm:mq_operator:2.0.14
Ibm » Mq Operator » Version: 2.0.15

cpe:2.3:a:ibm:mq_operator:2.0.15
Ibm » Mq Operator » Version: 2.0.16

cpe:2.3:a:ibm:mq_operator:2.0.16
Ibm » Mq Operator » Version: 2.0.17

cpe:2.3:a:ibm:mq_operator:2.0.17
Ibm » Mq Operator » Version: 2.0.18

cpe:2.3:a:ibm:mq_operator:2.0.18
Ibm » Mq Operator » Version: 2.0.19

cpe:2.3:a:ibm:mq_operator:2.0.19
Ibm » Mq Operator » Version: 2.0.20

cpe:2.3:a:ibm:mq_operator:2.0.20
Ibm » Mq Operator » Version: 2.0.21

cpe:2.3:a:ibm:mq_operator:2.0.21
Ibm » Mq Operator » Version: 2.0.22

cpe:2.3:a:ibm:mq_operator:2.0.22
Ibm » Mq Operator » Version: 2.0.23

cpe:2.3:a:ibm:mq_operator:2.0.23
Ibm » Mq Operator » Version: 2.0.24

cpe:2.3:a:ibm:mq_operator:2.0.24
Ibm » Mq Operator » Version: 2.0.25

cpe:2.3:a:ibm:mq_operator:2.0.25
Ibm » Mq Operator » Version: 2.0.29

cpe:2.3:a:ibm:mq_operator:2.0.29
Ibm » Mq Operator » Version: 2.0.5

cpe:2.3:a:ibm:mq_operator:2.0.5
Ibm » Mq Operator » Version: 2.0.6

cpe:2.3:a:ibm:mq_operator:2.0.6
Ibm » Mq Operator » Version: 2.0.7

cpe:2.3:a:ibm:mq_operator:2.0.7
Ibm » Mq Operator » Version: 2.0.8

cpe:2.3:a:ibm:mq_operator:2.0.8
Ibm » Mq Operator » Version: 2.0.9

cpe:2.3:a:ibm:mq_operator:2.0.9
Ibm » Mq Operator » Version: 3.2.0

cpe:2.3:a:ibm:mq_operator:3.2.0
Ibm » Mq Operator » Version: 3.2.10

cpe:2.3:a:ibm:mq_operator:3.2.10
Ibm » Mq Operator » Version: 3.2.12

cpe:2.3:a:ibm:mq_operator:3.2.12
Ibm » Mq Operator » Version: 3.2.13

cpe:2.3:a:ibm:mq_operator:3.2.13
Ibm » Mq Operator » Version: 3.2.3

cpe:2.3:a:ibm:mq_operator:3.2.3
Ibm » Mq Operator » Version: 3.3.0

cpe:2.3:a:ibm:mq_operator:3.3.0
Ibm » Mq Operator » Version: 3.4.0

cpe:2.3:a:ibm:mq_operator:3.4.0
Ibm » Mq Operator » Version: 3.4.1

cpe:2.3:a:ibm:mq_operator:3.4.1
Ibm » Mq Operator » Version: 3.5.0

cpe:2.3:a:ibm:mq_operator:3.5.0
Ibm » Mq Operator » Version: 3.5.1

cpe:2.3:a:ibm:mq_operator:3.5.1
Ibm » Mq Operator » Version: 3.5.2

cpe:2.3:a:ibm:mq_operator:3.5.2
Ibm » Mq Operator » Version: 3.5.3

cpe:2.3:a:ibm:mq_operator:3.5.3
Ibm » Mq Operator » Version: 3.6.0

cpe:2.3:a:ibm:mq_operator:3.6.0
Ibm » Mq Operator » Version: 3.6.1

cpe:2.3:a:ibm:mq_operator:3.6.1
Ibm » Mq Operator » Version: 3.6.2

cpe:2.3:a:ibm:mq_operator:3.6.2
Ibm » Mq Operator » Version: 3.6.3

cpe:2.3:a:ibm:mq_operator:3.6.3
Ibm » Mq Operator » Version: 3.6.4

cpe:2.3:a:ibm:mq_operator:3.6.4
Ibm » Mq Operator » Version: 3.7.0

cpe:2.3:a:ibm:mq_operator:3.7.0
Ibm » Mq Operator » Version: 3.7.1

cpe:2.3:a:ibm:mq_operator:3.7.1
Ibm » Mq Operator » Version: 3.7.2

cpe:2.3:a:ibm:mq_operator:3.7.2
Ibm » Mq Operator » Version: 3.8.0

cpe:2.3:a:ibm:mq_operator:3.8.0
Ibm » Mq Operator » Version: 3.8.1

cpe:2.3:a:ibm:mq_operator:3.8.1
Ibm » Mq Operator » Version: 3.9.0

cpe:2.3:a:ibm:mq_operator:3.9.0
Ibm » Mq Operator » Version: 3.9.1

cpe:2.3:a:ibm:mq_operator:3.9.1
Ibm » Mq Operator » Version: 3.9.2

cpe:2.3:a:ibm:mq_operator:3.9.2
Ibm » Mq Operator » Version: 4.0.0

cpe:2.3:a:ibm:mq_operator:4.0.0
Ibm » Mq Operator » Version: 4.0.1

cpe:2.3:a:ibm:mq_operator:4.0.1
Ibm » Mq Operator » Version: 4.0.2

cpe:2.3:a:ibm:mq_operator:4.0.2
Ibm » Mq Operator » Version: 4.0.3

cpe:2.3:a:ibm:mq_operator:4.0.3
Ibm » Mq Operator » Version: 4.0.4

cpe:2.3:a:ibm:mq_operator:4.0.4
Ibm » Supplied Mq Advanced Container Images » Version: 10.0.0.0

cpe:2.3:a:ibm:supplied_mq_advanced_container_images:10.0.0.0
Ibm » Supplied Mq Advanced Container Images » Version: 10.0.0.5

cpe:2.3:a:ibm:supplied_mq_advanced_container_images:10.0.0.5
Ibm » Supplied Mq Advanced Container Images » Version: 9.3.0.0

cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.3.0.0
Ibm » Supplied Mq Advanced Container Images » Version: 9.3.0.1

cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.3.0.1
Ibm » Supplied Mq Advanced Container Images » Version: 9.3.0.10

cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.3.0.10
Ibm » Supplied Mq Advanced Container Images » Version: 9.3.0.11

cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.3.0.11
Ibm » Supplied Mq Advanced Container Images » Version: 9.3.0.15

cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.3.0.15
Ibm » Supplied Mq Advanced Container Images » Version: 9.3.0.16

cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.3.0.16
Ibm » Supplied Mq Advanced Container Images » Version: 9.3.0.17

cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.3.0.17
Ibm » Supplied Mq Advanced Container Images » Version: 9.3.0.20

cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.3.0.20
Ibm » Supplied Mq Advanced Container Images » Version: 9.3.0.21

cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.3.0.21
Ibm » Supplied Mq Advanced Container Images » Version: 9.3.0.25

cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.3.0.25
Ibm » Supplied Mq Advanced Container Images » Version: 9.3.0.3

cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.3.0.3
Ibm » Supplied Mq Advanced Container Images » Version: 9.3.0.4

cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.3.0.4
Ibm » Supplied Mq Advanced Container Images » Version: 9.3.0.5

cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.3.0.5
Ibm » Supplied Mq Advanced Container Images » Version: 9.3.0.6

cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.3.0.6
Ibm » Supplied Mq Advanced Container Images » Version: 9.4.0.0

cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.4.0.0
Ibm » Supplied Mq Advanced Container Images » Version: 9.4.0.10

cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.4.0.10
Ibm » Supplied Mq Advanced Container Images » Version: 9.4.0.11

cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.4.0.11
Ibm » Supplied Mq Advanced Container Images » Version: 9.4.0.12

cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.4.0.12
Ibm » Supplied Mq Advanced Container Images » Version: 9.4.0.15

cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.4.0.15
Ibm » Supplied Mq Advanced Container Images » Version: 9.4.0.16

cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.4.0.16
Ibm » Supplied Mq Advanced Container Images » Version: 9.4.0.17

cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.4.0.17
Ibm » Supplied Mq Advanced Container Images » Version: 9.4.0.20

cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.4.0.20
Ibm » Supplied Mq Advanced Container Images » Version: 9.4.0.21

cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.4.0.21
Ibm » Supplied Mq Advanced Container Images » Version: 9.4.0.25

cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.4.0.25
Ibm » Supplied Mq Advanced Container Images » Version: 9.4.0.26

cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.4.0.26
Ibm » Supplied Mq Advanced Container Images » Version: 9.4.0.5

cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.4.0.5
Ibm » Supplied Mq Advanced Container Images » Version: 9.4.0.6

cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.4.0.6
Ibm » Supplied Mq Advanced Container Images » Version: 9.4.0.7

cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.4.0.7
Ibm » Supplied Mq Advanced Container Images » Version: 9.4.1.0

cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.4.1.0
Ibm » Supplied Mq Advanced Container Images » Version: 9.4.1.1

cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.4.1.1
Ibm » Supplied Mq Advanced Container Images » Version: 9.4.2.0

cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.4.2.0
Ibm » Supplied Mq Advanced Container Images » Version: 9.4.2.1

cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.4.2.1
Ibm » Supplied Mq Advanced Container Images » Version: 9.4.3.0

cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.4.3.0
Ibm » Supplied Mq Advanced Container Images » Version: 9.4.3.1

cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.4.3.1
Ibm » Supplied Mq Advanced Container Images » Version: 9.4.4.0

cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.4.4.0
Ibm » Supplied Mq Advanced Container Images » Version: 9.4.4.1

cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.4.4.1
Ibm » Supplied Mq Advanced Container Images » Version: 9.4.5.0

cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.4.5.0
Ibm » Supplied Mq Advanced Container Images » Version: 9.4.5.1

cpe:2.3:a:ibm:supplied_mq_advanced_container_images:9.4.5.1

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2026-12343

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