{"id":"CVE-2026-96265","revision":"1cca18b05d144c64a975e29829b9833d","records":[{"revision":"1cca18b05d144c64a975e29829b9833d","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-96265","aliases":[],"title":"IBM Power Systems Firmware Improper Memory Buffer Restriction","description":"IBM Power Systems Firmware FW1060.00 through FW1060.81 is affected by a vulnerability in the service processor mailbox interface. An attacker with authenticated service-level access to the FSP can send a specially crafted mailbox message to read or modify arbitrary regions of Hostboot memory, compromising the host firmware boot stack and the hypervisor subsequently loaded by it. Successful exploitation results in a confidentiality, integrity, and availability impact to the managed system.","state":0,"publishedAt":"2026-10-12T20:52:00.904+00:00","modifiedAt":"2026-10-13T11:57:49.766+00:00","affected":[{"ecosystem":"Vendor product","name":"PowerVM Hypervisor","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"IBM\",\n                    \"product\": \"PowerVM Hypervisor\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"FW1060.00\",\n                            \"lessThanOrEqual\": \"FW1060.81\",\n                            \"versionType\": \"semver\"\n                        }\n                    ],\n                    \"cpes\": [\n                        \"cpe:2.3:a:ibm:powervm_hypervisor:fw1060.00:*:*:*:*:*:*:*\",\n                        \"cpe:2.3:a:ibm:powervm_hypervisor:fw1060.00.0:*:*:*:*:*:*:*\",\n                        \"cpe:2.3:a:ibm:powervm_hypervisor:fw1060.81:*:*:*:*:*:*:*\",\n                        \"cpe:2.3:a:ibm:powervm_hypervisor:fw1060.81.0:*:*:*:*:*:*:*\"\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","score":8.2,"severity":"HIGH"}],"references":["https://www.ibm.com/support/pages/node/7290124"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-96265","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-96265","identifiers":["CVE-2026-96265"]},"retained":false,"historicalAffected":[]}],"coverage":[]}