{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-65197", "assignerOrgId": "44488dab-36db-4358-99f9-bc116477f914", "state": "PUBLISHED", "assignerShortName": "runZero", "dateReserved": "2026-07-21T20:14:38.328Z", "datePublished": "2026-10-13T14:17:54.265Z", "dateUpdated": "2026-10-14T18:59:13.586Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "44488dab-36db-4358-99f9-bc116477f914", "shortName": "runZero", "dateUpdated": "2026-10-13T14:17:54.265Z" }, "title": "H3C G3/G5 HDM Firmware Verification Key Replacement", "datePublic": "2026-10-13T14:00:00.000Z", "problemTypes": [ { "descriptions": [ { "lang": "en", "cweId": "CWE-347", "description": "CWE-347 Improper verification of cryptographic signature", "type": "CWE" } ] } ], "affected": [ { "vendor": "H3C", "product": "HDM Family-A G5", "versions": [ { "status": "affected", "version": "0", "lessThanOrEqual": "6.14.01", "versionType": "semver" } ], "defaultStatus": "unaffected" } ], "descriptions": [ { "lang": "en", "value": "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.", "supportingMedia": [ { "type": "text/html", "base64": false, "value": "
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. 

This 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.
" } ] } ], "references": [ { "url": "https://www.runzero.com/advisories/h3c-hdm-firmware-verification-key-replacement-cve-2026-65197", "tags": [ "third-party-advisory" ] } ], "metrics": [ { "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ], "cvssV3_1": { "version": "3.1", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "HIGH", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE", "baseSeverity": "LOW", "baseScore": 3.1, "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:N" } }, { "other": { "type": "ssvc", "content": { "options": [ { "Exploitation": "poc" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "role": "CNA", "version": "2.0.3" } }, "scenarios": [ { "lang": "en", "value": "GENERAL" } ] } ], "credits": [ { "lang": "en", "value": "HD Moore of runZero", "type": "finder" }, { "lang": "en", "value": "Tod Beardsley of runZero", "type": "coordinator" } ], "source": { "discovery": "EXTERNAL" }, "x_generator": { "engine": "Vulnogram 1.0.5" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-10-14T18:58:59.500334Z", "id": "CVE-2026-65197", "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": "2026-10-14T18:59:13.586Z" } } ] } }