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Vulnerability details

CVE-2026-11375

IBM MQ

IBM MQ queue manager is vulnerable to remote code execution

CVSS 3.1
8.8High

Official description

IBM MQ could allow an authenticated attacker to cause a denial of service or potentially execute arbitrary code due to a stack buffer overflow when processing XA transaction identifiers.

CVSS scores

ScoreVersionSourceVector
8.8High 3.1 CVEProject cvelistV5 (CNA) (ibm) CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

VendorProductVersionsSource
IBM MQ 10.0.0.0 CVEProject cvelistV5 (CNA)
IBM MQ 9.1.0.0 ≤ v ≤ 9.1.0.37 LTS CVEProject cvelistV5 (CNA)
IBM MQ 9.2.0.0 ≤ v ≤ 9.2.0.43 LTS CVEProject cvelistV5 (CNA)
IBM MQ 9.3.0.0 ≤ v ≤ 9.3.5.1 CD CVEProject cvelistV5 (CNA)
IBM MQ 9.3.0.0 ≤ v ≤ 9.3.0.41 LTS CVEProject cvelistV5 (CNA)
IBM MQ 9.4.0.0 ≤ v ≤ 9.4.5.1 CD CVEProject cvelistV5 (CNA)
IBM MQ 9.4.0.0 ≤ v ≤ 9.4.0.25 LTS CVEProject cvelistV5 (CNA)

References and advisories

1
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Details

Published
2026-09-18
Last updated
2026-09-21
State
Published
Assigner (CNA)
ibm

Exploit prediction (EPSS)

0.6%
Probability of exploitation in 30 days
49.4%
Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable
No
Exploitation
None
Technical impact
Total

Weaknesses (CWE)

  • CWE-122
    Heap-based Buffer Overflow