{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-18142", "assignerOrgId": "9a959283-ebb5-44b6-b705-dcc2bbced522", "state": "PUBLISHED", "assignerShortName": "ibm", "dateReserved": "2026-07-28T18:51:59.464Z", "datePublished": "2026-11-04T20:21:55.509Z", "dateUpdated": "2026-11-04T20:21:55.509Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "9a959283-ebb5-44b6-b705-dcc2bbced522", "shortName": "ibm", "dateUpdated": "2026-11-04T20:21:55.509Z"}, "title": "IBM MQ is affected by a denial of service vulnerability", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-190", "description": "CWE-190 Integer Overflow or Wraparound", "type": "CWE"}]}], "affected": [{"vendor": "IBM", "product": "MQ", "versions": [{"status": "affected", "version": "9.2.0.0", "lessThanOrEqual": "9.2.0.44", "versionType": "semver"}, {"status": "affected", "version": "9.3.0.0", "lessThanOrEqual": "9.3.0.42", "versionType": "semver"}, {"status": "affected", "version": "9.4.0.0", "lessThanOrEqual": "9.4.0.26", "versionType": "semver"}, {"status": "affected", "version": "9.4.0.0", "lessThanOrEqual": "9.4.5.1", "versionType": "semver"}, {"status": "affected", "version": "10.0.0.0", "lessThanOrEqual": "10.0.0.5", "versionType": "semver"}], "cpes": ["cpe:2.3:a:ibm:mq:9.2.0.0:*:*:*:*:*:*:*", "cpe:2.3:a:ibm:mq:9.3.0.0:*:*:*:*:*:*:*", "cpe:2.3:a:ibm:mq:9.4.0.0:*:*:*:*:*:*:*"]}], "descriptions": [{"lang": "en", "value": "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 a remote authenticated attacker to cause a denial of service and perform limited memory corruption due to an integer overflow.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>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 a remote authenticated attacker to cause a denial of service and perform limited memory corruption due to an integer overflow.</p>"}]}], "references": [{"url": "https://www.ibm.com/support/pages/node/7294663", "tags": ["vendor-advisory", "patch"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "HIGH", "baseSeverity": "HIGH", "baseScore": 7.1, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H"}}], "solutions": [{"lang": "en", "value": "This issue was addressed under Known Issue DT500561.\n\n\n\nIBM MQ version 9.2 LTS\n\n\n\n Apply cumulative security update 9.2.0.46 https://www.ibm.com/support/pages/downloading-ibm-mq-92-lts \n\n\n\nIBM MQ version 9.3 LTS\n\n\n\n Apply cumulative security update 9.3.0.43 https://www.ibm.com/support/pages/downloading-ibm-mq-93-lts \n\n\n\nIBM MQ version 9.4 LTS\n\n\n\n Apply fix pack 9.4.0.30 https://www.ibm.com/support/pages/downloading-ibm-mq-94 \n\n\n\nIBM MQ version 10.0.LTS\n\n\n\n Upgrade to IBM MQ version 10.0.0.6 https://www.ibm.com/support/pages/downloading-ibm-mq-100 \n\n\n\nIBM MQ version 9.4 CD and 10.0 CD\n\n\n\n Upgrade to IBM MQ version 10.0.1.0 https://www.ibm.com/support/pages/downloading-ibm-mq-100", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>This issue was addressed under Known Issue DT500561.</p><p>IBM MQ version 9.2 LTS</p><p><a href=\"https://www.ibm.com/support/pages/downloading-ibm-mq-92-lts\" rel=\"noopener noreferrer nofollow\">Apply cumulative security update 9.2.0.46</a></p><p>IBM MQ version 9.3 LTS</p><p><a href=\"https://www.ibm.com/support/pages/downloading-ibm-mq-93-lts\" rel=\"noopener noreferrer nofollow\">Apply cumulative security update 9.3.0.43</a></p><p>IBM MQ version 9.4 LTS</p><p><a href=\"https://www.ibm.com/support/pages/downloading-ibm-mq-94\" rel=\"noopener noreferrer nofollow\">Apply fix pack 9.4.0.30</a></p><p>IBM MQ version 10.0.LTS</p><p><a href=\"https://www.ibm.com/support/pages/downloading-ibm-mq-100\" rel=\"noopener noreferrer nofollow\">Upgrade to IBM MQ version 10.0.0.6</a></p><p>IBM MQ version 9.4 CD and 10.0 CD</p><p><a href=\"https://www.ibm.com/support/pages/downloading-ibm-mq-100\" rel=\"noopener noreferrer nofollow\">Upgrade to IBM MQ version 10.0.1.0</a></p>"}]}]}}}

{}

{"affected": [{"affectedData": [{"cpes": ["cpe:2.3:a:ibm:mq:9.2.0.0:*:*:*:*:*:*:*", "cpe:2.3:a:ibm:mq:9.3.0.0:*:*:*:*:*:*:*", "cpe:2.3:a:ibm:mq:9.4.0.0:*:*:*:*:*:*:*"], "product": "MQ", "vendor": "IBM", "versions": [{"lessThanOrEqual": "9.2.0.44", "status": "affected", "version": "9.2.0.0", "versionType": "semver"}, {"lessThanOrEqual": "9.3.0.42", "status": "affected", "version": "9.3.0.0", "versionType": "semver"}, {"lessThanOrEqual": "9.4.0.26", "status": "affected", "version": "9.4.0.0", "versionType": "semver"}, {"lessThanOrEqual": "9.4.5.1", "status": "affected", "version": "9.4.0.0", "versionType": "semver"}, {"lessThanOrEqual": "10.0.0.5", "status": "affected", "version": "10.0.0.0", "versionType": "semver"}]}], "source": "psirt@us.ibm.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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 a remote authenticated attacker to cause a denial of service and perform limited memory corruption due to an integer overflow."}], "id": "CVE-2026-18142", "lastModified": "2026-11-04T21:18:13.310", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 4.2, "source": "psirt@us.ibm.com", "type": "Primary"}]}, "published": "2026-11-04T21:18:13.187", "references": [{"source": "psirt@us.ibm.com", "url": "https://www.ibm.com/support/pages/node/7294663"}], "sourceIdentifier": "psirt@us.ibm.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-190"}], "source": "psirt@us.ibm.com", "type": "Primary"}]}

{}

{}