{"api_version":"1","generated_at":"2026-07-23T20:07:26+00:00","cve":"CVE-2021-31616","urls":{"html":"https://cve.report/CVE-2021-31616","api":"https://cve.report/api/cve/CVE-2021-31616.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-31616","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-31616"},"summary":{"title":"CVE-2021-31616","description":"Insufficient length checks in the ShapeShift KeepKey hardware wallet firmware before 7.1.0 allow a stack buffer overflow via crafted messages. The overflow in ethereum_extractThorchainSwapData() in ethereum.c can circumvent stack protections and lead to code execution. The vulnerable interface is reachable remotely over WebUSB.","state":"PUBLIC","assigner":"cve@mitre.org","published_at":"2021-05-06 13:15:00","updated_at":"2022-05-03 16:04:00"},"problem_types":["CWE-787"],"metrics":[],"references":[{"url":"https://shapeshift.com/library/keepkey-important-update-issued-april-4-required","name":"https://shapeshift.com/library/keepkey-important-update-issued-april-4-required","refsource":"MISC","tags":[],"title":"KeepKey: Important Update (Issued April 4) Required","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://github.com/keepkey/keepkey-firmware/commit/e49d45594002d4d3fbc1f03488e6dfc0a0a65836","name":"https://github.com/keepkey/keepkey-firmware/commit/e49d45594002d4d3fbc1f03488e6dfc0a0a65836","refsource":"MISC","tags":[],"title":"710 merge · keepkey/keepkey-firmware@e49d455 · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://blog.inhq.net/posts/keepkey-CVE-2021-31616/","name":"https://blog.inhq.net/posts/keepkey-CVE-2021-31616/","refsource":"MISC","tags":[],"title":"KeepKey Stack Buffer Overflow Vulnerability (CVE-2021-31616) | invd blog","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://github.com/keepkey/keepkey-firmware/releases/tag/v7.1.0","name":"https://github.com/keepkey/keepkey-firmware/releases/tag/v7.1.0","refsource":"MISC","tags":[],"title":"Release Release v7.1.0 · keepkey/keepkey-firmware · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-31616","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-31616","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2021","cve_id":"31616","vulnerable":"-1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"h","cpe4":"shapeshift","cpe5":"keepkey","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"31616","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"shapeshift","cpe5":"keepkey_firmware","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2021-31616","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"n/a","version":{"version_data":[{"version_value":"n/a"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"Insufficient length checks in the ShapeShift KeepKey hardware wallet firmware before 7.1.0 allow a stack buffer overflow via crafted messages. The overflow in ethereum_extractThorchainSwapData() in ethereum.c can circumvent stack protections and lead to code execution. The vulnerable interface is reachable remotely over WebUSB."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"url":"https://github.com/keepkey/keepkey-firmware/releases/tag/v7.1.0","refsource":"MISC","name":"https://github.com/keepkey/keepkey-firmware/releases/tag/v7.1.0"},{"url":"https://github.com/keepkey/keepkey-firmware/commit/e49d45594002d4d3fbc1f03488e6dfc0a0a65836","refsource":"MISC","name":"https://github.com/keepkey/keepkey-firmware/commit/e49d45594002d4d3fbc1f03488e6dfc0a0a65836"},{"refsource":"MISC","name":"https://blog.inhq.net/posts/keepkey-CVE-2021-31616/","url":"https://blog.inhq.net/posts/keepkey-CVE-2021-31616/"},{"refsource":"MISC","name":"https://shapeshift.com/library/keepkey-important-update-issued-april-4-required","url":"https://shapeshift.com/library/keepkey-important-update-issued-april-4-required"}]}},"nvd":{"publishedDate":"2021-05-06 13:15:00","lastModifiedDate":"2022-05-03 16:04:00","problem_types":["CWE-787"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH"},"exploitabilityScore":2.8,"impactScore":5.9},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:M/Au:N/C:P/I:P/A:P","accessVector":"NETWORK","accessComplexity":"MEDIUM","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL","baseScore":6.8},"severity":"MEDIUM","exploitabilityScore":8.6,"impactScore":6.4,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":true}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"AND","children":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:shapeshift:keepkey_firmware:*:*:*:*:*:*:*:*","versionStartIncluding":"7.0.3","versionEndExcluding":"7.1.0","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":false,"cpe23Uri":"cpe:2.3:h:shapeshift:keepkey:-:*:*:*:*:*:*:*","cpe_name":[]}]}],"cpe_match":[]}]}},"legacy_mitre":{"record":{"CveYear":"2021","CveId":"31616","Ordinal":"206908","Title":"CVE-2021-31616","CVE":"CVE-2021-31616","Year":"2021"},"notes":[{"CveYear":"2021","CveId":"31616","Ordinal":"1","NoteData":"Insufficient length checks in the ShapeShift KeepKey hardware wallet firmware before 7.1.0 allow a stack buffer overflow via crafted messages. The overflow in ethereum_extractThorchainSwapData() in ethereum.c can circumvent stack protections and lead to code execution. The vulnerable interface is reachable remotely over WebUSB.","Type":"Description","Title":null},{"CveYear":"2021","CveId":"31616","Ordinal":"2","NoteData":"2021-05-06","Type":"Other","Title":"Published"},{"CveYear":"2021","CveId":"31616","Ordinal":"3","NoteData":"2021-05-06","Type":"Other","Title":"Modified"}]}}}