{"id":"CVE-2026-17503","revision":"9293d82daa8a4ecca09ebc0fea456f36","records":[{"revision":"9293d82daa8a4ecca09ebc0fea456f36","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-17503","aliases":[],"title":"This Power System update is being released to address","description":"IBM PowerVM Hypervisor FW1120.00 through FW1120.01, FW1110.00 through FW1110.31, FW1060.00 through FW1060.81, and FW950.00 through FW950.H3 is affected by a vulnerability in the partition firmware runtime boot configuration. An attacker with root access to a partition can maliciously alter partition nvram, causing the partition to fail to boot. This condition persists until operator intervention — deleting and recreating the partition configuration — to restore normal operation. Successful exploitation results in an integrity and availability impact.","state":0,"publishedAt":"2026-09-24T14:06:05.304+00:00","modifiedAt":"2026-09-24T14:58:10.635+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\": \"FW1120.00\",\n                            \"lessThanOrEqual\": \"FW1120.01\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"FW1110.00\",\n                            \"lessThanOrEqual\": \"FW1110.31\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"FW1060.00\",\n                            \"lessThanOrEqual\": \"FW1060.81\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"FW950.00\",\n                            \"lessThanOrEqual\": \"FW950.H3\",\n                            \"versionType\": \"semver\"\n                        }\n                    ],\n                    \"cpes\": [\n                        \"cpe:2.3:a:ibm:powervm_hypervisor:fw1120.00:*:*:*:*:*:*:*\",\n                        \"cpe:2.3:a:ibm:powervm_hypervisor:fw1120.00.0:*:*:*:*:*:*:*\",\n                        \"cpe:2.3:a:ibm:powervm_hypervisor:fw1120.01:*:*:*:*:*:*:*\",\n                        \"cpe:2.3:a:ibm:powervm_hypervisor:fw1120.01.0:*:*:*:*:*:*:*\",\n                        \"cpe:2.3:a:ibm:powervm_hypervisor:fw1110.00:*:*:*:*:*:*:*\",\n                        \"cpe:2.3:a:ibm:powervm_hypervisor:fw1110.00.0:*:*:*:*:*:*:*\",\n                        \"cpe:2.3:a:ibm:powervm_hypervisor:fw1110.31:*:*:*:*:*:*:*\",\n                        \"cpe:2.3:a:ibm:powervm_hypervisor:fw1110.31.0:*:*:*:*:*:*:*\",\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                        \"cpe:2.3:a:ibm:powervm_hypervisor:fw950.00:*:*:*:*:*:*:*\",\n                        \"cpe:2.3:a:ibm:powervm_hypervisor:fw950.00.0:*:*:*:*:*:*:*\",\n                        \"cpe:2.3:a:ibm:powervm_hypervisor:fw950.h3:*:*:*:*:*:*:*\",\n                        \"cpe:2.3:a:ibm:powervm_hypervisor:fw950.h3.0:*:*:*:*:*:*:*\"\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H","score":5.1,"severity":"MEDIUM"}],"references":["https://www.ibm.com/support/pages/node/7289133"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-17503","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-17503","identifiers":["CVE-2026-17503"]},"retained":false,"historicalAffected":[]}],"coverage":[]}