{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-16933", "assignerOrgId": "9a959283-ebb5-44b6-b705-dcc2bbced522", "state": "PUBLISHED", "assignerShortName": "ibm", "dateReserved": "2026-07-24T07:31:49.353Z", "datePublished": "2026-08-19T19:13:26.703Z", "dateUpdated": "2026-08-19T20:05:15.480Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "9a959283-ebb5-44b6-b705-dcc2bbced522", "shortName": "ibm", "dateUpdated": "2026-08-19T20:05:15.480Z"}, "title": "Power System Integer Overflow", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-190", "description": "CWE-190 Integer Overflow or Wraparound", "type": "CWE"}]}], "affected": [{"vendor": "IBM", "product": "Power Systems 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"}, {"status": "affected", "version": "OP940.00", "lessThanOrEqual": "OP940.a1", "versionType": "semver"}, {"status": "affected", "version": "OP940.00", "lessThanOrEqual": "OP940.81", "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:*:*:*:*:*:*:*", "cpe:2.3:o:ibm:power_systems_firmware:op940.00:*:*:*:*:*:*:*", "cpe:2.3:o:ibm:power_systems_firmware:op940.a1:*:*:*:*:*:*:*"]}], "descriptions": [{"lang": "en", "value": "IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, FW950.00 through FW950.H2, OP940.00 through OP940.a1 (Power9), and OP940.00 through OP940.81 (Power HMC) is affected by a vulnerability in the interface between the BMC/FSP and the host system. An attacker with service account or root access to the BMC/FSP can read and write arbitrary regions of host system memory, giving full control over the host system and all hosted partitions, resulting in a confidentiality, integrity, and availability impact.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, FW950.00 through FW950.H2, OP940.00 through OP940.a1 (Power9), and OP940.00 through OP940.81 (Power HMC) is affected by a vulnerability in the interface between the BMC/FSP and the host system. An attacker with service account or root access to the BMC/FSP can read and write arbitrary regions of host system memory, giving full control over the host system and all hosted partitions, resulting in a confidentiality, integrity, and availability impact.</p>"}]}], "references": [{"url": "https://www.ibm.com/support/pages/node/7283216", "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"}}], "solutions": [{"lang": "en", "value": "Customers with the products below should install FW1110.31(1110_134), FW1120.01(1120_167), 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 FW1110.31(1110_155), FW1120.01(1120_190), 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 FW1120.01(1120_190), 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 FW1060.81(1060_184), 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 FW1060.81(1060_191), 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\nCustomers with the products below should install FW950.H3(950_230) or newer to remediate this vulnerability.\nPower 9\n\n * IBM Power System S922 (9009-22G)\n * IBM Power System H922 (9223-22S)\n * IBM Power System S914 (9009-41G)\n * IBM Power System S924 (9009-42G)\n * IBM Power System H924 (9223-42S)\n * IBM Power System E950 (9040-MR9)\n * IBM Power System E980 (9080-M9S)\n\n\nCustomers with the products below should install OP940.a2 or newer to remediate this vulnerability.\nPower 9\n\n * IBM Power System AC922\u00a0(8335-GTH, 8335-GTX)\n\n\nCustomers with the products below should install OP940.82 or newer to remediate this vulnerability.\nPower Hardware Management Console\n\n * IBM Power Hardware Management Console (7063-CR2)\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 FW1110.31(1110_134), FW1120.01(1120_167), 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 FW1110.31(1110_155), FW1120.01(1120_190), 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 FW1120.01(1120_190), 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 FW1060.81(1060_184), 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 FW1060.81(1060_191), 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>Customers with the products below should install FW950.H3(950_230) or newer to remediate this vulnerability.<br/>Power 9</p><ol><li>IBM Power System S922 (9009-22G)</li><li>IBM Power System H922 (9223-22S)</li><li>IBM Power System S914 (9009-41G)</li><li>IBM Power System S924 (9009-42G)</li><li>IBM Power System H924 (9223-42S)</li><li>IBM Power System E950 (9040-MR9)</li><li>IBM Power System E980 (9080-M9S)</li></ol><p>Customers with the products below should install OP940.a2 or newer to remediate this vulnerability.<br/>Power 9</p><ol><li>IBM Power System AC922\u00a0(8335-GTH, 8335-GTX)</li></ol><p>Customers with the products below should install OP940.82 or newer to remediate this vulnerability.<br/>Power Hardware Management Console</p><ol><li>IBM Power Hardware Management Console (7063-CR2)</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: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:*:*:*:*:*:*:*", "cpe:2.3:o:ibm:power_systems_firmware:op940.00:*:*:*:*:*:*:*", "cpe:2.3:o:ibm:power_systems_firmware:op940.a1:*:*:*:*:*:*:*"], "product": "Power Systems 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"}, {"lessThanOrEqual": "OP940.a1", "status": "affected", "version": "OP940.00", "versionType": "semver"}, {"lessThanOrEqual": "OP940.81", "status": "affected", "version": "OP940.00", "versionType": "semver"}]}], "source": "[email protected]"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, FW950.00 through FW950.H2, OP940.00 through OP940.a1 (Power9), and OP940.00 through OP940.81 (Power HMC) is affected by a vulnerability in the interface between the BMC/FSP and the host system. An attacker with service account or root access to the BMC/FSP can read and write arbitrary regions of host system memory, giving full control over the host system and all hosted partitions, resulting in a confidentiality, integrity, and availability impact."}], "id": "CVE-2026-16933", "lastModified": "2026-08-19T20:17:11.807", "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": "[email protected]", "type": "Primary"}]}, "published": "2026-08-19T20:17:11.807", "references": [{"source": "[email protected]", "url": "https://www.ibm.com/support/pages/node/7283216"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-190"}], "source": "[email protected]", "type": "Primary"}]}

{}

{}