{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-18681", "assignerOrgId": "9a959283-ebb5-44b6-b705-dcc2bbced522", "state": "PUBLISHED", "assignerShortName": "ibm", "dateReserved": "2026-08-03T15:34:34.383Z", "datePublished": "2026-08-19T18:36:15.970Z", "dateUpdated": "2026-08-19T18:36:15.970Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "9a959283-ebb5-44b6-b705-dcc2bbced522", "shortName": "ibm", "dateUpdated": "2026-08-19T18:36:15.970Z"}, "title": "This Power System Buffer Overflow", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-121", "description": "CWE-121 Stack-based Buffer Overflow", "type": "CWE"}]}], "affected": [{"vendor": "IBM", "product": "Server Firmware", "versions": [{"status": "affected", "version": "FW1120.00"}, {"status": "affected", "version": "FW1110.00", "lessThanOrEqual": "FW1110.30", "versionType": "semver"}, {"status": "affected", "version": "FW1060.00", "lessThanOrEqual": "FW1060.80", "versionType": "semver"}, {"status": "affected", "version": "FW950.00", "lessThanOrEqual": "FW950.H2", "versionType": "semver"}], "cpes": ["cpe:2.3:o:ibm:power_systems_firmware:fw1120.00:*:*:*:*:*:*:*", "cpe:2.3:o:ibm:power_systems_firmware:fw1110.00:*:*:*:*:*:*:*", "cpe:2.3:o:ibm:power_systems_firmware:fw1110.30:*:*:*:*:*:*:*", "cpe:2.3:o:ibm:power_systems_firmware:fw1060.00:*:*:*:*:*:*:*", "cpe:2.3:o:ibm:power_systems_firmware:fw1060.80:*:*:*:*:*:*:*", "cpe:2.3:o:ibm:power_systems_firmware:fw950.00:*:*:*:*:*:*:*", "cpe:2.3:o:ibm:power_systems_firmware:fw950.h2:*:*:*:*:*:*:*"]}], "descriptions": [{"lang": "en", "value": "IBM Server Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2 is affected by a vulnerability in the FSP firmware update process. An attacker with authenticated administrator-level access to the FSP can, under specific conditions, execute arbitrary code, resulting in a confidentiality, integrity, and availability impact.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>IBM Server Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2 is affected by a vulnerability in the FSP firmware update process. An attacker with authenticated administrator-level access to the FSP can, under specific conditions, execute arbitrary code, resulting in a confidentiality, integrity, and availability impact.</p>"}]}], "references": [{"url": "https://www.ibm.com/support/pages/node/7283899", "tags": ["vendor-advisory", "patch"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "ADJACENT_NETWORK", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseSeverity": "MEDIUM", "baseScore": 6.8, "vectorString": "CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H"}}], "workarounds": [{"lang": "en", "value": "Protect administrator access to the FSP.\u00a0 Install firmware images only from trusted sources.\u00a0 Validate the firmware image's integrity as described in the firmware \"Release Notes\" section \"Firmware Information and Description\" before installing it.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>Protect administrator access to the FSP.\u00a0 Install firmware images only from trusted sources.\u00a0 Validate the firmware image's integrity as described in the firmware \"Release Notes\" section \"Firmware Information and Description\" before installing it.</p>"}]}], "solutions": [{"lang": "en", "value": "Customers with the products below should install FW1120.01(1120_167), FW1110.31(1110_134) or newer to remediate this vulnerability.\n\n\n\nPower 11\n1) IBM Power System E1180 (9080-HEU)\n\n\n\nCustomers with the products below should install FW1060.81(1060_184) or newer to remediate this vulnerability.\n\n\n\nPower 10\n1) IBM Power System E1080 (9080-HEX)\n\n\n\nCustomers with the products below should install FW950.H3(950_230) or newer to remediate this vulnerability.\n\n\n\nPower 9\n1) IBM Power System S922 (9009-22G)\n2) IBM Power System H922 (9223-22S)\n3) IBM Power System S914 (9009-41G)\n4) IBM Power System S924 (9009-42G)\n5) IBM Power System H924 (9223-42S)\n6) IBM Power System E950 (9040-MR9)\n7) IBM Power System E980 (9080-M9S)\n\n\n\nThe images mentioned above can be located at IBM Fix Central : https://www.ibm.com/support/fixcentral/", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>Customers with the products below should install FW1120.01(1120_167), FW1110.31(1110_134) or newer to remediate this vulnerability.</p><p>Power 11<br/>1) IBM Power System E1180 (9080-HEU)</p><p>Customers with the products below should install FW1060.81(1060_184) or newer to remediate this vulnerability.</p><p>Power 10<br/>1) IBM Power System E1080 (9080-HEX)</p><p>Customers with the products below should install FW950.H3(950_230) or newer to remediate this vulnerability.</p><p>Power 9<br/>1) IBM Power System S922 (9009-22G)<br/>2) IBM Power System H922 (9223-22S)<br/>3) IBM Power System S914 (9009-41G)<br/>4) IBM Power System S924 (9009-42G)<br/>5) IBM Power System H924 (9223-42S)<br/>6) IBM Power System E950 (9040-MR9)<br/>7) IBM Power System E980 (9080-M9S)</p><p>The images mentioned above can be located at IBM Fix Central : <a href=\"https://www.ibm.com/support/fixcentral/\" rel=\"nofollow\">https://www.ibm.com/support/fixcentral/</a></p>"}]}]}}}

{}

{"affected": [{"affectedData": [{"cpes": ["cpe:2.3:o:ibm:power_systems_firmware:fw1120.00:*:*:*:*:*:*:*", "cpe:2.3:o:ibm:power_systems_firmware:fw1110.00:*:*:*:*:*:*:*", "cpe:2.3:o:ibm:power_systems_firmware:fw1110.30:*:*:*:*:*:*:*", "cpe:2.3:o:ibm:power_systems_firmware:fw1060.00:*:*:*:*:*:*:*", "cpe:2.3:o:ibm:power_systems_firmware:fw1060.80:*:*:*:*:*:*:*", "cpe:2.3:o:ibm:power_systems_firmware:fw950.00:*:*:*:*:*:*:*", "cpe:2.3:o:ibm:power_systems_firmware:fw950.h2:*:*:*:*:*:*:*"], "product": "Server Firmware", "vendor": "IBM", "versions": [{"status": "affected", "version": "FW1120.00"}, {"lessThanOrEqual": "FW1110.30", "status": "affected", "version": "FW1110.00", "versionType": "semver"}, {"lessThanOrEqual": "FW1060.80", "status": "affected", "version": "FW1060.00", "versionType": "semver"}, {"lessThanOrEqual": "FW950.H2", "status": "affected", "version": "FW950.00", "versionType": "semver"}]}], "source": "psirt@us.ibm.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "IBM Server Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2 is affected by a vulnerability in the FSP firmware update process. An attacker with authenticated administrator-level access to the FSP can, under specific conditions, execute arbitrary code, resulting in a confidentiality, integrity, and availability impact."}], "id": "CVE-2026-18681", "lastModified": "2026-08-19T19:17:12.110", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.8, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 0.9, "impactScore": 5.9, "source": "psirt@us.ibm.com", "type": "Primary"}]}, "published": "2026-08-19T19:17:12.110", "references": [{"source": "psirt@us.ibm.com", "url": "https://www.ibm.com/support/pages/node/7283899"}], "sourceIdentifier": "psirt@us.ibm.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-121"}], "source": "psirt@us.ibm.com", "type": "Primary"}]}

{}

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