{"api_version":"1","generated_at":"2026-07-23T12:19:52+00:00","cve":"CVE-2020-27209","urls":{"html":"https://cve.report/CVE-2020-27209","api":"https://cve.report/api/cve/CVE-2020-27209.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2020-27209","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2020-27209"},"summary":{"title":"CVE-2020-27209","description":"The ECDSA operation of the micro-ecc library 1.0 is vulnerable to simple power analysis attacks which allows an adversary to extract the private ECC key.","state":"PUBLIC","assigner":"cve@mitre.org","published_at":"2021-05-20 21:15:00","updated_at":"2021-05-27 18:21:00"},"problem_types":["NVD-CWE-noinfo"],"metrics":[],"references":[{"url":"https://github.com/kmackay/micro-ecc/releases","name":"https://github.com/kmackay/micro-ecc/releases","refsource":"MISC","tags":[],"title":"Releases · kmackay/micro-ecc · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.aisec.fraunhofer.de/de/das-institut/wissenschaftliche-exzellenz/security-and-trust-in-open-source-security-tokens.html","name":"https://www.aisec.fraunhofer.de/de/das-institut/wissenschaftliche-exzellenz/security-and-trust-in-open-source-security-tokens.html","refsource":"MISC","tags":[],"title":"Security and Trust in Open Source Security Tokens -  Fraunhofer AISEC","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://github.com/kmackay/micro-ecc/commit/1b5f5cea5145c96dd8791b9b2c41424fc74c2172","name":"https://github.com/kmackay/micro-ecc/commit/1b5f5cea5145c96dd8791b9b2c41424fc74c2172","refsource":"MISC","tags":[],"title":"Fix for #168 · kmackay/micro-ecc@1b5f5ce · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://eprint.iacr.org/2021/640","name":"https://eprint.iacr.org/2021/640","refsource":"MISC","tags":[],"title":"Cryptology ePrint Archive: Report 2021/640 - Security and Trust in Open Source Security Tokens","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.aisec.fraunhofer.de/en/FirmwareProtection.html","name":"https://www.aisec.fraunhofer.de/en/FirmwareProtection.html","refsource":"MISC","tags":[],"title":"Shedding too much Light on a Microcontroller’s Firmware Protection -  Fraunhofer AISEC","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-27209","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-27209","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2020","cve_id":"27209","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"micro-ecc_project","cpe5":"micro-ecc","cpe6":"1.0","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-2020-27209","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":"The ECDSA operation of the micro-ecc library 1.0 is vulnerable to simple power analysis attacks which allows an adversary to extract the private ECC key."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"url":"https://www.aisec.fraunhofer.de/en/FirmwareProtection.html","refsource":"MISC","name":"https://www.aisec.fraunhofer.de/en/FirmwareProtection.html"},{"url":"https://github.com/kmackay/micro-ecc/releases","refsource":"MISC","name":"https://github.com/kmackay/micro-ecc/releases"},{"refsource":"MISC","name":"https://eprint.iacr.org/2021/640","url":"https://eprint.iacr.org/2021/640"},{"refsource":"MISC","name":"https://github.com/kmackay/micro-ecc/commit/1b5f5cea5145c96dd8791b9b2c41424fc74c2172","url":"https://github.com/kmackay/micro-ecc/commit/1b5f5cea5145c96dd8791b9b2c41424fc74c2172"},{"refsource":"MISC","name":"https://www.aisec.fraunhofer.de/de/das-institut/wissenschaftliche-exzellenz/security-and-trust-in-open-source-security-tokens.html","url":"https://www.aisec.fraunhofer.de/de/das-institut/wissenschaftliche-exzellenz/security-and-trust-in-open-source-security-tokens.html"}]}},"nvd":{"publishedDate":"2021-05-20 21:15:00","lastModifiedDate":"2021-05-27 18:21:00","problem_types":["NVD-CWE-noinfo"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE","baseScore":7.5,"baseSeverity":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:P/I:N/A:N","accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"NONE","availabilityImpact":"NONE","baseScore":5},"severity":"MEDIUM","exploitabilityScore":10,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:micro-ecc_project:micro-ecc:1.0:*:*:*:*:*:*:*","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2020","CveId":"27209","Ordinal":"188643","Title":"CVE-2020-27209","CVE":"CVE-2020-27209","Year":"2020"},"notes":[{"CveYear":"2020","CveId":"27209","Ordinal":"1","NoteData":"The ECDSA operation of the micro-ecc library 1.0 is vulnerable to simple power analysis attacks which allows an adversary to extract the private ECC key.","Type":"Description","Title":null},{"CveYear":"2020","CveId":"27209","Ordinal":"2","NoteData":"2021-05-20","Type":"Other","Title":"Published"},{"CveYear":"2020","CveId":"27209","Ordinal":"3","NoteData":"2021-05-24","Type":"Other","Title":"Modified"}]}}}