{"schema":"threatline.record/2","record":{"id":"CVE-2026-65197","aliases":[],"summary":"H3C G3/G5 HDM Firmware Verification Key Replacement","details":"H3C HDM Family-A verifies the RSA signature of a firmware image against a public key it reads from the mutable file `/conf/public.pem`. That file is writable by an authenticated Redfish client through the `UpdateService.UploadSignKey` action, which stores the uploaded body verbatim after validating only that the multipart filename ends in `.pem`. An administrator, or any account with `firmware-update` privilege, can therefore replace the trust anchor with their own key, sign a malicious image with the matching private key, and have it pass verification. Family-A has no hardware root-of-trust (no PFR) to catch the substituted key. \n\nThis was observed on H3C HDM Family-A G5 HDM 6.14.01. H3C HDM Family-A G3/G5 builds carrying the Redfish/DRE update tree appear to be affected. HDM2 uses a different update path and is not covered by this finding.","categories":["Network & edge"],"product":"HDM Family-A G5","vendor":"H3C","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-65197","source_modified_at":"2026-10-14T18:59:13.586Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"HDM Family-A G5","vendor":"H3C","versions":[{"status":"affected","version":"0","lessThanOrEqual":"6.14.01","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":3.1,"severity":"Low","kev":{"listed":false},"epss":{"probability":0.00098,"percentile":0.00743,"score_date":"2026-10-23"},"published_at":"2026-10-13T14:17:54.265Z","modified_at":"2026-10-14T18:59:13.586Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-65197","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-14T18:59:13.586Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-65197","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.runzero.com/advisories/h3c-hdm-firmware-verification-key-replacement-cve-2026-65197","tags":["third-party-advisory"]}],"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":"2026-10-14T18:58:59.500334Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"vendor and product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-14T18:59:13.586Z","content_hash":"bbf9a1d69dec028fd3d2815478a37f29a4b22344fadedb5dde572e6a49506c72"}}