{"schema":"threatline.record/2","record":{"id":"CVE-2026-17503","aliases":[],"summary":"This Power System update is being released to address","details":"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.","categories":["Containers & cloud"],"product":"PowerVM Hypervisor","vendor":"IBM","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-17503","source_modified_at":"2026-09-24T14:58:10.635Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"PowerVM Hypervisor","vendor":"IBM","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"},{"status":"affected","version":"FW950.00","lessThanOrEqual":"FW950.H3","versionType":"semver"}],"defaultStatus":null}],"fixed_versions":[],"cvss":5.1,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00105,"percentile":0.01019,"score_date":"2026-10-23"},"published_at":"2026-09-24T14:06:05.304Z","modified_at":"2026-09-24T14:58:10.635Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-17503","fetched_at":"2026-10-23T18:52:38.922436Z","source_modified_at":"2026-09-24T14:58:10.635Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-17503","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://www.ibm.com/support/pages/node/7289133","tags":["vendor-advisory","patch"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"partial","assessed_at":"2026-09-24T14:52:58.999216Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-09-24T14:58:10.635Z","content_hash":"3dc85dbc6fdc6bd9421de1edadedb59c1b2f58861ea03e9c5b0650b958adabef"}}