{"id":"CVE-2026-17093","state":"PUBLISHED","title":"Power System Buffer Overflow","description":"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 - OP940.81 (Power HMC) is affected by a vulnerability in host firmware configuration parsing. An attacker with service-level access to the BMC/FSP can supply specially crafted configuration data, compromising the host firmware boot stage and everything subsequently loaded by it, resulting in a confidentiality, integrity, and availability impact to the managed system.","publishedAt":"2026-08-19T18:30:56.709Z","updatedAt":"2026-08-21T03:57:18.884Z","severity":{"score":8.2,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","source":"ibm"},"assigner":"ibm","products":["IBM Power Systems Firmware"],"affected":[{"vendor":"IBM","product":"Power Systems Firmware","versions":[{"version":"FW1120.00","status":"affected"},{"version":"FW1110.00","status":"affected","lessThanOrEqual":"FW1110.30","versionType":"semver"},{"version":"FW1060.00","status":"affected","lessThanOrEqual":"FW1060.80","versionType":"semver"},{"version":"FW950.00","status":"affected","lessThanOrEqual":"FW950.H2","versionType":"semver"},{"version":"OP940.00","status":"affected","lessThanOrEqual":"OP940.a1","versionType":"semver"},{"version":"OP940.00","status":"affected","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:*:*:*:*:*:*:*"]}],"references":["https://www.ibm.com/support/pages/node/7283239"],"weaknesses":["CWE-121"],"ingestedAt":"2026-10-29T20:11:00.674Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/17xxx/CVE-2026-17093.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-17093","state":"PUBLISHED","datePublished":"2026-08-19T18:30:56.709Z","dateUpdated":"2026-08-21T03:57:18.884Z","assignerShortName":"ibm","assignerOrgId":"9a959283-ebb5-44b6-b705-dcc2bbced522","dateReserved":"2026-07-24T14:49:02.518Z"},"containers":{"cna":{"title":"Power System Buffer Overflow","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 - OP940.81 (Power HMC) is affected by a vulnerability in host firmware configuration parsing. An attacker with service-level access to the BMC/FSP can supply specially crafted configuration data, compromising the host firmware boot stage and everything subsequently loaded by it, resulting in a confidentiality, integrity, and availability impact to the managed system."}],"affected":[{"vendor":"IBM","product":"Power Systems Firmware","versions":[{"version":"FW1120.00","status":"affected"},{"version":"FW1110.00","status":"affected","lessThanOrEqual":"FW1110.30","versionType":"semver"},{"version":"FW1060.00","status":"affected","lessThanOrEqual":"FW1060.80","versionType":"semver"},{"version":"FW950.00","status":"affected","lessThanOrEqual":"FW950.H2","versionType":"semver"},{"version":"OP940.00","status":"affected","lessThanOrEqual":"OP940.a1","versionType":"semver"},{"version":"OP940.00","status":"affected","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:*:*:*:*:*:*:*"]}],"references":[{"url":"https://www.ibm.com/support/pages/node/7283239","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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-121","lang":"en","description":"CWE-121 Stack-based Buffer Overflow","type":"CWE"}]}],"providerMetadata":{"shortName":"ibm","orgId":"9a959283-ebb5-44b6-b705-dcc2bbced522","dateUpdated":"2026-08-19T19:04:14.292Z"},"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\nIBM Power System E1180 (9080-HEU)\nCustomers with the products below should install FW1110.31(1110_155), FW1120.01(1120_190), or newer to remediate this vulnerability.\nPower 11\nIBM Power System S1122 (9824-22A)\nIBM Power System S1124 (9824-42A)\nIBM Power System S1122s (9824-22B)\nIBM Power System S1114 (9824-41B)\nIBM Power System L1122 (9856-22H)\nIBM Power System L1124 (9856-42H)\nIBM Power System E1150 (9043-MRU)\nCustomers with the products below should install FW1120.01(1120_190), or newer to remediate this vulnerability.\nPower 11\nIBM Power System S1112 (9242-21B, 9242-21T)\n\nCustomers with the products below should install FW1060.81(1060_184), or newer to remediate this vulnerability.\nPower 10\nIBM Power System E1080 (9080-HEX)\nCustomers with the products below should install FW1060.81(1060_191), or newer to remediate this vulnerability.\nPower 10\nIBM Power System S1022 (9105-22A)\nIBM Power System S1024 (9105-42A)\nIBM Power System S1022s (9105-22B)\nIBM Power System S1014 (9105-41B)\nIBM Power System L1022 (9786-22H)\nIBM Power System L1024 (9786-42H)\nIBM Power System E1050 (9043-MRX)\nIBM Power System S1012 (9028-21B)\n\nCustomers with the products below should install FW950.H3(950_230) or newer to remediate this vulnerability.\nPower 9\nIBM Power System S922 (9009-22G)\nIBM Power System H922 (9223-22S)\nIBM Power System S914 (9009-41G)\nIBM Power System S924 (9009-42G)\nIBM Power System H924 (9223-42S)\nIBM Power System E950 (9040-MR9)\nIBM Power System E980 (9080-M9S)\nCustomers with the products below should install OP940.a2 or newer to remediate this vulnerability.\nPower 9\nIBM Power System AC922 (8335-GTH, 8335-GTX)\nCustomers with the products below should install OP940.82 or newer to remediate this vulnerability.\nPower Hardware Management Console\nIBM Power Hardware Management Console (7063-CR2)\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 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  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></p><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 (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>"}]}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-20T00:00:00+00:00","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3","id":"CVE-2026-17093"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-21T03:57:18.884Z"}}]}}}