IBM Power Systems 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 management network protocol. An attacker with authenticated HMC administrator access can execute arbitrary code on the service processor, giving full control over the managed system, resulting in a confidentiality, integrity, and availability impact.
"}],"value":"IBM Power Systems 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 management network protocol. An attacker with authenticated HMC administrator access can execute arbitrary code on the service processor, giving full control over the managed system, resulting in a confidentiality, integrity, and availability impact."}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"ADJACENT_NETWORK","availabilityImpact":"HIGH","baseScore":8.4,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"HIGH","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-121","description":"CWE-121 Stack-based Buffer Overflow","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-08-19T18:58:53.948Z","orgId":"9a959283-ebb5-44b6-b705-dcc2bbced522","shortName":"ibm"},"references":[{"tags":["vendor-advisory","patch"],"url":"https://www.ibm.com/support/pages/node/7283895"}],"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"Customers with the products below should install FW1120.01(1120_167), FW1110.31(1110_134), or newer to remediate this vulnerability.
Power 11
1) IBM Power System E1180 (9080-HEU)
Customers with the products below should install FW1060.81(1060_184), or newer to remediate this vulnerability.
Power 10
1) IBM Power System E1080 (9080-HEX)
Customers with the products below should install FW950.H3(950_230), or newer to remediate this vulnerability.
Power9
1) IBM Power System S922 (9009-22G)
2) IBM Power System H922 (9223-22S)
3) IBM Power System S914 (9009-41G)
4) IBM Power System S924 (9009-42G)
5) IBM Power System H924 (9223-42S)
6) IBM Power System E950 (9040-MR9)
7) IBM Power System E980 (9080-M9S)
The images mentioned above can be located at IBM Fix Central : https://www.ibm.com/support/fixcentral/
"}],"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\nPower9\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/"}],"title":"Power System Buffer Overflow","workarounds":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"Protect access to the FSP's network interface.
"}],"value":"Protect access to the FSP's network interface."}]}},"cveMetadata":{"assignerOrgId":"9a959283-ebb5-44b6-b705-dcc2bbced522","assignerShortName":"ibm","cveId":"CVE-2026-16832","datePublished":"2026-08-19T18:49:27.791Z","dateReserved":"2026-07-24T02:37:40.718Z","dateUpdated":"2026-08-22T03:56:07.011Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-19 19:17:10","lastModifiedDate":"2026-08-22 04:17:15","problem_types":["CWE-121","CWE-121 CWE-121 Stack-based Buffer Overflow"],"metrics":{"cvssMetricV31":[{"source":"psirt@us.ibm.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","baseScore":8.4,"baseSeverity":"HIGH","attackVector":"ADJACENT_NETWORK","attackComplexity":"LOW","privilegesRequired":"HIGH","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.7,"impactScore":6}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-08-21T00:00:00+00:00","id":"CVE-2026-16832","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"16832","Ordinal":"1","Title":"Power System Buffer Overflow","CVE":"CVE-2026-16832","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"16832","Ordinal":"1","NoteData":"IBM Power Systems 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 management network protocol. An attacker with authenticated HMC administrator access can execute arbitrary code on the service processor, giving full control over the managed system, resulting in a confidentiality, integrity, and availability impact.","Type":"Description","Title":"Power System Buffer Overflow"}]}}}