{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-16815", "assignerOrgId": "9a959283-ebb5-44b6-b705-dcc2bbced522", "state": "PUBLISHED", "assignerShortName": "ibm", "dateReserved": "2026-07-24T01:33:15.634Z", "datePublished": "2026-08-13T19:40:44.965Z", "dateUpdated": "2026-08-14T16:47:07.827Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "9a959283-ebb5-44b6-b705-dcc2bbced522", "shortName": "ibm", "dateUpdated": "2026-08-13T19:40:44.965Z" }, "title": "IBM i is Affected By Multiple Vulnerabilities in Simple Mail Transfer Protocol", "problemTypes": [ { "descriptions": [ { "lang": "en", "cweId": "CWE-787", "description": "CWE-787 Out-of-bounds Write", "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:a:ibm:i:7.6:*:*:*:*:*:*:*", "cpe:2.3:a:ibm:i:7.6.0:*:*:*:*:*:*:*", "cpe:2.3:a:ibm:i:7.5:*:*:*:*:*:*:*", "cpe:2.3:a:ibm:i:7.5.0:*:*:*:*:*:*:*", "cpe:2.3:a:ibm:i:7.4:*:*:*:*:*:*:*", "cpe:2.3:a:ibm:i:7.4.0:*:*:*:*:*:*:*", "cpe:2.3:a:ibm:i:7.3:*:*:*:*:*:*:*", "cpe:2.3:a:ibm:i:7.3.0:*:*:*:*:*:*:*" ] } ], "descriptions": [ { "lang": "en", "value": "IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to cause a denial of service and potentially obtain sensitive information due to a stack-based buffer overflow.", "supportingMedia": [ { "type": "text/html", "base64": false, "value": "
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to cause a denial of service and potentially obtain sensitive information due to a stack-based buffer overflow.
" } ] } ], "references": [ { "url": "https://www.ibm.com/support/pages/node/7283291", "tags": [ "vendor-advisory", "patch" ] } ], "metrics": [ { "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ], "cvssV3_1": { "version": "3.1", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "HIGH", "baseSeverity": "HIGH", "baseScore": 8.6, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H" } } ], "solutions": [ { "lang": "en", "value": "IBM strongly recommends addressing the vulnerability now.\n\nIBM i Release5770-TC1\nPTF Number(s)PTF Download Link(s)7.6SJ11061\nSJ11131 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11061 \n https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11131 7.5SJ11074\nSJ11129\n https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11074 \n https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11129 7.4SJ11083\nSJ11127\n https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11083 \n https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11127 7.3SJ11084\nSJ11123 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11084 \n https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11123 https://www.ibm.com/mysupport/s/fix-information \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": "IBM strongly recommends addressing the vulnerability now.
IBM recommends users running unsupported versions of affected products upgrade to a supported and fixed version of affected products.
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