{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-18857","assignerOrgId":"9a959283-ebb5-44b6-b705-dcc2bbced522","state":"PUBLISHED","assignerShortName":"ibm","dateReserved":"2026-08-04T16:01:27.817Z","datePublished":"2026-09-24T14:13:50.386Z","dateUpdated":"2026-09-24T14:54:35.705Z"},"containers":{"cna":{"providerMetadata":{"orgId":"9a959283-ebb5-44b6-b705-dcc2bbced522","shortName":"ibm","dateUpdated":"2026-09-24T14:13:50.386Z"},"title":"This Power System update is being released to address","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-125","description":"CWE-125 Out-of-bounds Read","type":"CWE"}]}],"affected":[{"vendor":"IBM","product":"OPENBMC","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:openbmc:fw1120.00:*:*:*:*:*:*:*","cpe:2.3:a:ibm:openbmc:fw1120.00.0:*:*:*:*:*:*:*","cpe:2.3:a:ibm:openbmc:fw1120.01:*:*:*:*:*:*:*","cpe:2.3:a:ibm:openbmc:fw1120.01.0:*:*:*:*:*:*:*","cpe:2.3:a:ibm:openbmc:fw1110.00:*:*:*:*:*:*:*","cpe:2.3:a:ibm:openbmc:fw1110.00.0:*:*:*:*:*:*:*","cpe:2.3:a:ibm:openbmc:fw1110.31:*:*:*:*:*:*:*","cpe:2.3:a:ibm:openbmc:fw1110.31.0:*:*:*:*:*:*:*","cpe:2.3:a:ibm:openbmc:fw1060.00:*:*:*:*:*:*:*","cpe:2.3:a:ibm:openbmc:fw1060.00.0:*:*:*:*:*:*:*","cpe:2.3:a:ibm:openbmc:fw1060.81:*:*:*:*:*:*:*","cpe:2.3:a:ibm:openbmc:fw1060.81.0:*:*:*:*:*:*:*"]}],"descriptions":[{"lang":"en","value":"IBM OPENBMC FW1120.00 through FW1120.01, FW1110.00 through FW1110.31, and FW1060.00 through FW1060.81 is affected by a vulnerability in the BMC firmware management interface. The host system can cause the BMC firmware management service to crash or allow a limited amount of BMC internal memory to be read, resulting in a confidentiality and availability impact to the managed system.","supportingMedia":[{"type":"text/html","base64":false,"value":"

IBM OPENBMC FW1120.00 through FW1120.01, FW1110.00 through FW1110.31, and FW1060.00 through FW1060.81 is affected by a vulnerability in the BMC firmware management interface. The host system can cause the BMC firmware management service to crash or allow a limited amount of BMC internal memory to be read, resulting in a confidentiality and availability impact to the managed system.

"}]}],"references":[{"url":"https://www.ibm.com/support/pages/node/7289253","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":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"NONE","availabilityImpact":"LOW","baseSeverity":"LOW","baseScore":3.4,"vectorString":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:L"}}],"workarounds":[{"lang":"en","value":"Only install system firmware from trusted sources.","supportingMedia":[{"type":"text/html","base64":false,"value":"

Only install system firmware from trusted sources.

"}]}],"solutions":[{"lang":"en","value":"Customers with the products below should install FW1120.02(1120_195), FW1110.32(1110_160) or newer to remediate this vulnerability.\n\n\n\nPower 11\n1) IBM Power System S1122 (9824-22A)\n2) IBM Power System S1124 (9824-42A)\n3) IBM Power System S1122s (9824-22B)\n4) IBM Power System S1114 (9824-41B)\n5) IBM Power System L1122 (9856-22H)\n6) IBM Power System L1124 (9856-42H)\n7) IBM Power System E1150 (9043-MRU)\n8) IBM Power System S1112 (9242-21B, 9242-21T)\n\n\n\nCustomers with the products below should install FW1060.82(1060_199) or newer to remediate this vulnerability.\n\n\n\nPower 10\n1) IBM Power System S1022 (9105-22A)\n2) IBM Power System S1024 (9105-42A)\n3) IBM Power System S1022s (9105-22B)\n4) IBM Power System S1014 (9105-41B)\n5) IBM Power System L1022 (9786-22H)\n6) IBM Power System L1024 (9786-42H)\n7) IBM Power System E1050 (9043-MRX)\n8) IBM Power System S1012 (9028-21B)\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":"

Customers with the products below should install FW1120.02(1120_195), FW1110.32(1110_160) or newer to remediate this vulnerability.

Power 11
1) IBM Power System S1122 (9824-22A)
2) IBM Power System S1124 (9824-42A)
3) IBM Power System S1122s (9824-22B)
4) IBM Power System S1114 (9824-41B)
5) IBM Power System L1122 (9856-22H)
6) IBM Power System L1124 (9856-42H)
7) IBM Power System E1150 (9043-MRU)
8) IBM Power System S1112 (9242-21B, 9242-21T)

Customers with the products below should install FW1060.82(1060_199) or newer to remediate this vulnerability.

Power 10
1) IBM Power System S1022 (9105-22A)
2) IBM Power System S1024 (9105-42A)
3) IBM Power System S1022s (9105-22B)
4) IBM Power System S1014 (9105-41B)
5) IBM Power System L1022 (9786-22H)
6) IBM Power System L1024 (9786-42H)
7) IBM Power System E1050 (9043-MRX)
8) IBM Power System S1012 (9028-21B)

The images mentioned above can be located at IBM Fix Central : https://www.ibm.com/support/fixcentral/

"}]}]},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-24T14:54:25.176870Z","id":"CVE-2026-18857","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-09-24T14:54:35.705Z"}}]}}