{"id":"CVE-2026-11378","title":"IBM MQ could allow an authenticated attacker to cause a denial of service or potentially execute arbitrary code due to an integer overflow in distribution list processing.","summary":"IBM MQ could allow an authenticated attacker to cause a denial of service or potentially execute arbitrary code due to an integer overflow in distribution list processing.","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-190"],"vendor":"ibm","product":"mq","affected":["mq >= 9.1.0.0, <= 9.1.0.37","mq >= 9.2.0.0, <= 9.2.0.43","mq >= 9.3.0.0, <= 9.3.0.41","mq >= 9.3.0.0, <= 9.3.5.1","mq >= 9.4.0.0, <= 9.4.0.25","mq >= 9.4.0.0, <= 9.4.5.1","mq = 10.0.0.0"],"published":"2026-09-18","updated":"2026-09-23","sourceUpdated":"2026-09-23T18:23:54.403","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-11378","references":[{"url":"https://www.ibm.com/support/pages/node/7284945","label":"psirt@us.ibm.com"}],"tags":["nvd","cve.org"],"epss":0.00604,"epssPercentile":0.48674,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-09-19T03:56:53.450763Z"},"ingestedAt":"2026-09-18T16:45:41.382Z","slug":"CVE-2026-11378","body":"## Overview\n\nIBM MQ could allow an authenticated attacker to cause a denial of service or potentially execute arbitrary code due to an integer overflow in distribution list processing.\n\n## Affected\n\n- `mq >= 9.1.0.0, <= 9.1.0.37`\n- `mq >= 9.2.0.0, <= 9.2.0.43`\n- `mq >= 9.3.0.0, <= 9.3.0.41`\n- `mq >= 9.3.0.0, <= 9.3.5.1`\n- `mq >= 9.4.0.0, <= 9.4.0.25`\n- `mq >= 9.4.0.0, <= 9.4.5.1`\n- `mq = 10.0.0.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":49,"depthScoreParts":{"impact":48.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}