{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-18102", "assignerOrgId": "9a959283-ebb5-44b6-b705-dcc2bbced522", "state": "PUBLISHED", "assignerShortName": "ibm", "dateReserved": "2026-07-28T17:33:47.769Z", "datePublished": "2026-08-19T20:32:50.506Z", "dateUpdated": "2026-08-19T20:32:50.506Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "9a959283-ebb5-44b6-b705-dcc2bbced522", "shortName": "ibm", "dateUpdated": "2026-08-19T20:32:50.506Z"}, "title": "IBM i Buffer Overflow", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-122", "description": "CWE-122 Heap-based Buffer Overflow", "type": "CWE"}]}], "affected": [{"vendor": "IBM", "product": "i", "versions": [{"status": "affected", "version": "7.6"}, {"status": "affected", "version": "7.5"}, {"status": "affected", "version": "7.4"}, {"status": "affected", "version": "7.3"}], "cpes": ["cpe:2.3:o:ibm:i:7.6:*:*:*:*:*:*:*", "cpe:2.3:o:ibm:i:7.5:*:*:*:*:*:*:*", "cpe:2.3:o:ibm:i:7.4:*:*:*:*:*:*:*", "cpe:2.3:o:ibm:i:7.3:*:*:*:*:*:*:*"]}], "descriptions": [{"lang": "en", "value": "IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to overwrite adjacent memory due to an integer underflow during bounds checking.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to overwrite adjacent memory due to an integer underflow during bounds checking.</p>"}]}], "references": [{"url": "https://www.ibm.com/support/pages/node/7283297", "tags": ["vendor-advisory", "patch"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "NONE", "baseSeverity": "LOW", "baseScore": 3.5, "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:N"}}], "solutions": [{"lang": "en", "value": "IBM i Release5770-999\nPTF Number(s)PTF Download Link(s)7.6MJ10886 https://www.ibm.com/mysupport/s/fix-information?legacy=MJ10886 7.5MJ10885 https://www.ibm.com/mysupport/s/fix-information?legacy=MJ10885 7.4MJ10884 https://www.ibm.com/mysupport/s/fix-information?legacy=MJ10884 7.3MJ10883 https://www.ibm.com/mysupport/s/fix-information?legacy=MJ10883 \n\n\n\nIBM recommends users running unsupported versions of affected products upgrade to a supported and fixed version of affected products.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<div><table><colgroup><col/><col/><col/></colgroup><thead><tr><td><strong>IBM i Release</strong></td><td><strong>5770-999<br/>PTF Number(s)</strong></td><td><strong>PTF Download Link(s)</strong></td></tr></thead><tbody><tr><td>7.6</td><td>MJ10886</td><td><a href=\"https://www.ibm.com/mysupport/s/fix-information?legacy=MJ10886\" rel=\"noopener noreferrer nofollow\">https://www.ibm.com/mysupport/s/fix-information?legacy=MJ10886</a></td></tr><tr><td>7.5</td><td>MJ10885</td><td><a href=\"https://www.ibm.com/mysupport/s/fix-information?legacy=MJ10885\" rel=\"noopener noreferrer nofollow\">https://www.ibm.com/mysupport/s/fix-information?legacy=MJ10885</a></td></tr><tr><td>7.4</td><td>MJ10884</td><td><a href=\"https://www.ibm.com/mysupport/s/fix-information?legacy=MJ10884\" rel=\"noopener noreferrer nofollow\">https://www.ibm.com/mysupport/s/fix-information?legacy=MJ10884</a></td></tr><tr><td>7.3</td><td>MJ10883</td><td><a href=\"https://www.ibm.com/mysupport/s/fix-information?legacy=MJ10883\" rel=\"noopener noreferrer nofollow\">https://www.ibm.com/mysupport/s/fix-information?legacy=MJ10883</a></td></tr></tbody></table></div><p>IBM recommends users running unsupported versions of affected products upgrade to a supported and fixed version of affected products.</p>"}]}]}}}

{}

{"affected": [{"affectedData": [{"cpes": ["cpe:2.3:o:ibm:i:7.6:*:*:*:*:*:*:*", "cpe:2.3:o:ibm:i:7.5:*:*:*:*:*:*:*", "cpe:2.3:o:ibm:i:7.4:*:*:*:*:*:*:*", "cpe:2.3:o:ibm:i:7.3:*:*:*:*:*:*:*"], "product": "i", "vendor": "IBM", "versions": [{"status": "affected", "version": "7.6"}, {"status": "affected", "version": "7.5"}, {"status": "affected", "version": "7.4"}, {"status": "affected", "version": "7.3"}]}], "source": "psirt@us.ibm.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to overwrite adjacent memory due to an integer underflow during bounds checking."}], "id": "CVE-2026-18102", "lastModified": "2026-08-19T21:16:54.270", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 3.5, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 1.4, "source": "psirt@us.ibm.com", "type": "Primary"}]}, "published": "2026-08-19T21:16:54.270", "references": [{"source": "psirt@us.ibm.com", "url": "https://www.ibm.com/support/pages/node/7283297"}], "sourceIdentifier": "psirt@us.ibm.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-122"}], "source": "psirt@us.ibm.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "7.6"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "7.5"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "7.4"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "7.3"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "i", "source": "cna", "vendor": "IBM"}, "product": "i", "vendor": "ibm"}], "created": "2026-08-19T21:45:07.366314+00:00", "updated": "2026-08-19T21:45:07.366371+00:00", "vendors": ["ibm", "ibm$PRODUCT$i"]}