{"api_version":"1","generated_at":"2026-04-23T02:16:51+00:00","cve":"CVE-2020-26969","urls":{"html":"https://cve.report/CVE-2020-26969","api":"https://cve.report/api/cve/CVE-2020-26969.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2020-26969","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2020-26969"},"summary":{"title":"CVE-2020-26969","description":"Mozilla developers reported memory safety bugs present in Firefox 82. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 83.","state":"PUBLIC","assigner":"security@mozilla.org","published_at":"2020-12-09 01:15:00","updated_at":"2020-12-10 18:35:00"},"problem_types":["CWE-787"],"metrics":[],"references":[{"url":"https://bugzilla.mozilla.org/buglist.cgi?bug_id=1623920%2C1651705%2C1667872%2C1668876","name":"https://bugzilla.mozilla.org/buglist.cgi?bug_id=1623920%2C1651705%2C1667872%2C1668876","refsource":"MISC","tags":["Broken Link"],"title":"Bug List","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.mozilla.org/security/advisories/mfsa2020-50/","name":"https://www.mozilla.org/security/advisories/mfsa2020-50/","refsource":"CONFIRM","tags":["Vendor Advisory"],"title":"Security Vulnerabilities fixed in Firefox 83 — Mozilla","mime":"text/html","httpstatus":"200","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-26969","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-26969","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2020","cve_id":"26969","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"mozilla","cpe5":"firefox","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"26969","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"mozilla","cpe5":"firefox","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[{"cve":"CVE-2020-26969","qid":"500957","title":"Alpine Linux Security Update for firefox"},{"cve":"CVE-2020-26969","qid":"503842","title":"Alpine Linux Security Update for firefox"}]},"source_records":{"cve_program":{"data_type":"CVE","data_format":"MITRE","data_version":"4.0","CVE_data_meta":{"ID":"CVE-2020-26969","ASSIGNER":"security@mozilla.org","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"vendor_name":"Mozilla","product":{"product_data":[{"product_name":"Firefox","version":{"version_data":[{"version_value":"< 83"}]}}]}}]}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"Memory safety bugs fixed in Firefox 83"}]}]},"references":{"reference_data":[{"url":"https://bugzilla.mozilla.org/buglist.cgi?bug_id=1623920%2C1651705%2C1667872%2C1668876","refsource":"MISC","name":"https://bugzilla.mozilla.org/buglist.cgi?bug_id=1623920%2C1651705%2C1667872%2C1668876"},{"refsource":"CONFIRM","name":"https://www.mozilla.org/security/advisories/mfsa2020-50/","url":"https://www.mozilla.org/security/advisories/mfsa2020-50/"}]},"description":{"description_data":[{"lang":"eng","value":"Mozilla developers reported memory safety bugs present in Firefox 82. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 83."}]}},"nvd":{"publishedDate":"2020-12-09 01:15:00","lastModifiedDate":"2020-12-10 18:35:00","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:C/I:C/A:C","accessVector":"NETWORK","accessComplexity":"MEDIUM","authentication":"NONE","confidentialityImpact":"COMPLETE","integrityImpact":"COMPLETE","availabilityImpact":"COMPLETE","baseScore":9.3},"severity":"HIGH","exploitabilityScore":8.6,"impactScore":10,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":true}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*","versionEndExcluding":"83.0","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2020","CveId":"26969","Ordinal":"188403","Title":"CVE-2020-26969","CVE":"CVE-2020-26969","Year":"2020"},"notes":[{"CveYear":"2020","CveId":"26969","Ordinal":"1","NoteData":"Mozilla developers reported memory safety bugs present in Firefox 82. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 83.","Type":"Description","Title":null},{"CveYear":"2020","CveId":"26969","Ordinal":"2","NoteData":"2020-12-08","Type":"Other","Title":"Published"},{"CveYear":"2020","CveId":"26969","Ordinal":"3","NoteData":"2020-12-08","Type":"Other","Title":"Modified"}]}}}