{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-96263", "assignerOrgId": "9a959283-ebb5-44b6-b705-dcc2bbced522", "state": "PUBLISHED", "assignerShortName": "ibm", "dateReserved": "2026-09-22T20:14:24.422Z", "datePublished": "2026-10-12T20:52:20.625Z", "dateUpdated": "2026-10-12T20:52:20.625Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "9a959283-ebb5-44b6-b705-dcc2bbced522", "shortName": "ibm", "dateUpdated": "2026-10-12T20:52:20.625Z"}, "title": "IBM Power Systems Firmware Buffer Overflow", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-121", "description": "CWE-121 Stack-based Buffer Overflow", "type": "CWE"}]}], "affected": [{"vendor": "IBM", "product": "PowerVM Hypervisor", "versions": [{"status": "affected", "version": "FW1120.00", "lessThanOrEqual": "FW1120.01", "versionType": "semver"}, {"status": "affected", "version": "FW1110.00", "lessThanOrEqual": "FW1110.31", "versionType": "semver"}, {"status": "affected", "version": "FW1060.00", "lessThanOrEqual": "FW1060.81", "versionType": "semver"}], "cpes": ["cpe:2.3:a:ibm:powervm_hypervisor:fw1120.00:*:*:*:*:*:*:*", "cpe:2.3:a:ibm:powervm_hypervisor:fw1120.00.0:*:*:*:*:*:*:*", "cpe:2.3:a:ibm:powervm_hypervisor:fw1120.01:*:*:*:*:*:*:*", "cpe:2.3:a:ibm:powervm_hypervisor:fw1120.01.0:*:*:*:*:*:*:*", "cpe:2.3:a:ibm:powervm_hypervisor:fw1110.00:*:*:*:*:*:*:*", "cpe:2.3:a:ibm:powervm_hypervisor:fw1110.00.0:*:*:*:*:*:*:*", "cpe:2.3:a:ibm:powervm_hypervisor:fw1110.31:*:*:*:*:*:*:*", "cpe:2.3:a:ibm:powervm_hypervisor:fw1110.31.0:*:*:*:*:*:*:*", "cpe:2.3:a:ibm:powervm_hypervisor:fw1060.00:*:*:*:*:*:*:*", "cpe:2.3:a:ibm:powervm_hypervisor:fw1060.00.0:*:*:*:*:*:*:*", "cpe:2.3:a:ibm:powervm_hypervisor:fw1060.81:*:*:*:*:*:*:*", "cpe:2.3:a:ibm:powervm_hypervisor:fw1060.81.0:*:*:*:*:*:*:*"]}], "descriptions": [{"lang": "en", "value": "IBM Power Systems Firmware FW1120.00 through FW1120.01, FW1110.00 through FW1110.31, and FW1060.00 through FW1060.81 is affected by a vulnerability in the host firmware boot process image validation path. An attacker with service access to the service processor can supply a maliciously crafted code update image, allowing arbitrary code to be executed on the host system. Successful exploitation could result in a confidentiality, integrity, and availability impact to the affected host system.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>IBM Power Systems Firmware FW1120.00 through FW1120.01, FW1110.00 through FW1110.31, and FW1060.00 through FW1060.81 is affected by a vulnerability in the host firmware boot process image validation path. An attacker with service access to the service processor can supply a maliciously crafted code update image, allowing arbitrary code to be executed on the host system. Successful exploitation could result in a confidentiality, integrity, and availability impact to the affected host system.</p>"}]}], "references": [{"url": "https://www.ibm.com/support/pages/node/7290129", "tags": ["vendor-advisory", "patch"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseSeverity": "HIGH", "baseScore": 8.2, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H"}}], "workarounds": [{"lang": "en", "value": "NOTE: If performing a concurrent upgrade you must reboot the system after updating to the new firmware level to mitigate this CVE", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>NOTE: If performing a concurrent upgrade you must reboot the system after updating to the new firmware level to mitigate this CVE</p>"}]}], "solutions": [{"lang": "en", "value": "Customers with the products below should install FW1110.32(1110_138), FW1120.02(1120_171), or newer to remediate this vulnerability.\nPower 11\n\n * IBM Power System E1180 (9080-HEU)\n\n\nCustomers with the products below should install FW1110.32(1110_160), FW1120.02(1120_195), or newer to remediate this vulnerability.\nPower 11\n\n * IBM Power System S1122 (9824-22A)\n * IBM Power System S1124 (9824-42A)\n * IBM Power System S1122s (9824-22B)\n * IBM Power System S1114 (9824-41B)\n * IBM Power System L1122 (9856-22H)\n * IBM Power System L1124 (9856-42H)\n * IBM Power System E1150 (9043-MRU)\n\n\nCustomers with the products below should install FW1120.02(1120_195), or newer to remediate this vulnerability.\n\n\n\nPower 11\n\n * IBM Power System S1112 (9242-21B, 9242-21T)\n\n\n\nCustomers with the products below should install FW1060.82(1060_189), or newer to remediate this vulnerability.\nPower 10\n\n * IBM Power System E1080 (9080-HEX)\n\n\nCustomers with the products below should install\u00a0 FW1060.82(1060_199), or newer to remediate this vulnerability.\nPower 10\n\n * IBM Power System S1022 (9105-22A)\n * IBM Power System S1024 (9105-42A)\n * IBM Power System S1022s (9105-22B)\n * IBM Power System S1014 (9105-41B)\n * IBM Power System L1022 (9786-22H)\n * IBM Power System L1024 (9786-42H)\n * IBM Power System E1050 (9043-MRX)\n * IBM Power System S1012 (9028-21B)\n\n\nThe images mentioned above can be located at IBM Fix Central : https://www.ibm.com/support/fixcentral/ https://www.ibm.com/support/fixcentral/", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>Customers with the products below should install FW1110.32(1110_138), FW1120.02(1120_171), or newer to remediate this vulnerability.<br/>Power 11</p><ol><li>IBM Power System E1180 (9080-HEU)</li></ol><p>Customers with the products below should install FW1110.32(1110_160), FW1120.02(1120_195), or newer to remediate this vulnerability.<br/>Power 11</p><ol><li>IBM Power System S1122 (9824-22A)</li><li>IBM Power System S1124 (9824-42A)</li><li>IBM Power System S1122s (9824-22B)</li><li>IBM Power System S1114 (9824-41B)</li><li>IBM Power System L1122 (9856-22H)</li><li>IBM Power System L1124 (9856-42H)</li><li>IBM Power System E1150 (9043-MRU)</li></ol><p>Customers with the products below should install FW1120.02(1120_195), or newer to remediate this vulnerability.</p><p>Power 11</p><ol><li>IBM Power System S1112 (9242-21B, 9242-21T)</li></ol><p><br/>Customers with the products below should install FW1060.82(1060_189), or newer to remediate this vulnerability.<br/>Power 10</p><ol><li>IBM Power System E1080 (9080-HEX)</li></ol><p>Customers with the products below should install\u00a0 FW1060.82(1060_199), or newer to remediate this vulnerability.<br/>Power 10</p><ol><li>IBM Power System S1022 (9105-22A)</li><li>IBM Power System S1024 (9105-42A)</li><li>IBM Power System S1022s (9105-22B)</li><li>IBM Power System S1014 (9105-41B)</li><li>IBM Power System L1022 (9786-22H)</li><li>IBM Power System L1024 (9786-42H)</li><li>IBM Power System E1050 (9043-MRX)</li><li>IBM Power System S1012 (9028-21B)</li></ol><p><em>The images mentioned above can be located at IBM Fix Central : </em><a href=\"https://www.ibm.com/support/fixcentral/\" rel=\"noopener noreferrer nofollow\"><em>https://www.ibm.com/support/fixcentral/</em></a></p>"}]}]}}}

{}

{"affected": [{"affectedData": [{"cpes": ["cpe:2.3:a:ibm:powervm_hypervisor:fw1120.00:*:*:*:*:*:*:*", "cpe:2.3:a:ibm:powervm_hypervisor:fw1120.00.0:*:*:*:*:*:*:*", "cpe:2.3:a:ibm:powervm_hypervisor:fw1120.01:*:*:*:*:*:*:*", "cpe:2.3:a:ibm:powervm_hypervisor:fw1120.01.0:*:*:*:*:*:*:*", "cpe:2.3:a:ibm:powervm_hypervisor:fw1110.00:*:*:*:*:*:*:*", "cpe:2.3:a:ibm:powervm_hypervisor:fw1110.00.0:*:*:*:*:*:*:*", "cpe:2.3:a:ibm:powervm_hypervisor:fw1110.31:*:*:*:*:*:*:*", "cpe:2.3:a:ibm:powervm_hypervisor:fw1110.31.0:*:*:*:*:*:*:*", "cpe:2.3:a:ibm:powervm_hypervisor:fw1060.00:*:*:*:*:*:*:*", "cpe:2.3:a:ibm:powervm_hypervisor:fw1060.00.0:*:*:*:*:*:*:*", "cpe:2.3:a:ibm:powervm_hypervisor:fw1060.81:*:*:*:*:*:*:*", "cpe:2.3:a:ibm:powervm_hypervisor:fw1060.81.0:*:*:*:*:*:*:*"], "product": "PowerVM Hypervisor", "vendor": "IBM", "versions": [{"lessThanOrEqual": "FW1120.01", "status": "affected", "version": "FW1120.00", "versionType": "semver"}, {"lessThanOrEqual": "FW1110.31", "status": "affected", "version": "FW1110.00", "versionType": "semver"}, {"lessThanOrEqual": "FW1060.81", "status": "affected", "version": "FW1060.00", "versionType": "semver"}]}], "source": "psirt@us.ibm.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "IBM Power Systems Firmware FW1120.00 through FW1120.01, FW1110.00 through FW1110.31, and FW1060.00 through FW1060.81 is affected by a vulnerability in the host firmware boot process image validation path. An attacker with service access to the service processor can supply a maliciously crafted code update image, allowing arbitrary code to be executed on the host system. Successful exploitation could result in a confidentiality, integrity, and availability impact to the affected host system."}], "id": "CVE-2026-96263", "lastModified": "2026-10-12T21:17:23.893", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 8.2, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.5, "impactScore": 6.0, "source": "psirt@us.ibm.com", "type": "Primary"}]}, "published": "2026-10-12T21:17:23.893", "references": [{"source": "psirt@us.ibm.com", "url": "https://www.ibm.com/support/pages/node/7290129"}], "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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