{"api_version":"1","generated_at":"2026-07-23T14:02:48+00:00","cve":"CVE-2020-6638","urls":{"html":"https://cve.report/CVE-2020-6638","api":"https://cve.report/api/cve/CVE-2020-6638.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2020-6638","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2020-6638"},"summary":{"title":"CVE-2020-6638","description":"Grin through 2.1.1 has Insufficient Validation.","state":"PUBLIC","assigner":"cve@mitre.org","published_at":"2020-01-21 20:15:00","updated_at":"2020-01-27 16:20:00"},"problem_types":["CWE-20"],"metrics":[],"references":[{"url":"https://github.com/mimblewimble/grin-security/blob/master/CVEs/CVE-2020-6638.md","name":"https://github.com/mimblewimble/grin-security/blob/master/CVEs/CVE-2020-6638.md","refsource":"CONFIRM","tags":["Exploit","Patch","Technical Description","Third Party Advisory"],"title":"grin-security/CVE-2020-6638.md at master · mimblewimble/grin-security · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"0"},{"url":"https://github.com/mimblewimble/grin/compare/v2.1.1...v3.0.0","name":"https://github.com/mimblewimble/grin/compare/v2.1.1...v3.0.0","refsource":"MISC","tags":["Third Party Advisory"],"title":"Comparing v2.1.1...v3.0.0 · mimblewimble/grin · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-6638","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-6638","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2020","cve_id":"6638","vulnerable":"1","versionEndIncluding":"2.1.1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"grin","cpe5":"grin","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[{"cve":"CVE-2020-6638","qid":"997085","title":"Rust (Rust) Security Update for grin (GHSA-7w6p-rwhg-7h3g)"}]},"source_records":{"cve_program":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2020-6638","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":"Grin through 2.1.1 has Insufficient Validation."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"url":"https://github.com/mimblewimble/grin/compare/v2.1.1...v3.0.0","refsource":"MISC","name":"https://github.com/mimblewimble/grin/compare/v2.1.1...v3.0.0"},{"refsource":"CONFIRM","name":"https://github.com/mimblewimble/grin-security/blob/master/CVEs/CVE-2020-6638.md","url":"https://github.com/mimblewimble/grin-security/blob/master/CVEs/CVE-2020-6638.md"}]}},"nvd":{"publishedDate":"2020-01-21 20:15:00","lastModifiedDate":"2020-01-27 16:20:00","problem_types":["CWE-20"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:N/I:N/A:P","accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL","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:grin:grin:*:*:*:*:*:*:*:*","versionEndIncluding":"2.1.1","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2020","CveId":"6638","Ordinal":"166901","Title":"CVE-2020-6638","CVE":"CVE-2020-6638","Year":"2020"},"notes":[{"CveYear":"2020","CveId":"6638","Ordinal":"1","NoteData":"Grin through 2.1.1 has Insufficient Validation.","Type":"Description","Title":null},{"CveYear":"2020","CveId":"6638","Ordinal":"2","NoteData":"2020-01-21","Type":"Other","Title":"Published"},{"CveYear":"2020","CveId":"6638","Ordinal":"3","NoteData":"2020-01-21","Type":"Other","Title":"Modified"}]}}}