{"api_version":"1","generated_at":"2026-04-23T00:39:26+00:00","cve":"CVE-2020-6795","urls":{"html":"https://cve.report/CVE-2020-6795","api":"https://cve.report/api/cve/CVE-2020-6795.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2020-6795","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2020-6795"},"summary":{"title":"CVE-2020-6795","description":"When processing a message that contains multiple S/MIME signatures, a bug in the MIME processing code caused a null pointer dereference, leading to an unexploitable crash. This vulnerability affects Thunderbird < 68.5.","state":"PUBLIC","assigner":"security@mozilla.org","published_at":"2020-03-02 05:15:00","updated_at":"2020-03-14 19:15:00"},"problem_types":["CWE-476"],"metrics":[],"references":[{"url":"https://security.gentoo.org/glsa/202003-10","name":"GLSA-202003-10","refsource":"GENTOO","tags":[],"title":"Mozilla Thunderbird: Multiple vulnerabilities (GLSA 202003-10) — Gentoo security","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://usn.ubuntu.com/4328-1/","name":"USN-4328-1","refsource":"UBUNTU","tags":[],"title":"USN-4328-1: Thunderbird vulnerabilities | Ubuntu security notices | Ubuntu","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1611105","name":"https://bugzilla.mozilla.org/show_bug.cgi?id=1611105","refsource":"MISC","tags":["Permissions Required"],"title":"1611105 - (CVE-2020-6795) TB crashes during opening s/mime signed mail from mailman mailinglist","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://usn.ubuntu.com/4335-1/","name":"USN-4335-1","refsource":"UBUNTU","tags":[],"title":"USN-4335-1: Thunderbird vulnerabilities | Ubuntu security notices","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.mozilla.org/security/advisories/mfsa2020-07/","name":"https://www.mozilla.org/security/advisories/mfsa2020-07/","refsource":"MISC","tags":["Vendor Advisory"],"title":"Security Vulnerabilities fixed in Thunderbird 68.5 — Mozilla","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-6795","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-6795","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2020","cve_id":"6795","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"mozilla","cpe5":"thunderbird","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"6795","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"mozilla","cpe5":"thunderbird","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[{"cve":"CVE-2020-6795","qid":"296076","title":"Oracle Solaris 11.4 Support Repository Update (SRU) 19.3.0 Missing (CPUJAN2020)"},{"cve":"CVE-2020-6795","qid":"377039","title":"Alibaba Cloud Linux Security Update for thunderbird (ALINUX2-SA-2020:0025)"},{"cve":"CVE-2020-6795","qid":"502371","title":"Alpine Linux Security Update for thunderbird"}]},"source_records":{"cve_program":{"data_type":"CVE","data_format":"MITRE","data_version":"4.0","CVE_data_meta":{"ID":"CVE-2020-6795","ASSIGNER":"security@mozilla.org","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"vendor_name":"Mozilla","product":{"product_data":[{"product_name":"Thunderbird","version":{"version_data":[{"version_value":"68.5","version_affected":"<"}]}}]}}]}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"Crash processing S/MIME messages with multiple signatures"}]}]},"references":{"reference_data":[{"url":"https://www.mozilla.org/security/advisories/mfsa2020-07/","refsource":"MISC","name":"https://www.mozilla.org/security/advisories/mfsa2020-07/"},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1611105","refsource":"MISC","name":"https://bugzilla.mozilla.org/show_bug.cgi?id=1611105"},{"refsource":"GENTOO","name":"GLSA-202003-10","url":"https://security.gentoo.org/glsa/202003-10"},{"refsource":"UBUNTU","name":"USN-4328-1","url":"https://usn.ubuntu.com/4328-1/"},{"refsource":"UBUNTU","name":"USN-4335-1","url":"https://usn.ubuntu.com/4335-1/"}]},"description":{"description_data":[{"lang":"eng","value":"When processing a message that contains multiple S/MIME signatures, a bug in the MIME processing code caused a null pointer dereference, leading to an unexploitable crash. This vulnerability affects Thunderbird < 68.5."}]}},"nvd":{"publishedDate":"2020-03-02 05:15:00","lastModifiedDate":"2020-03-14 19:15:00","problem_types":["CWE-476"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM"},"exploitabilityScore":2.8,"impactScore":3.6},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:M/Au:N/C:N/I:N/A:P","accessVector":"NETWORK","accessComplexity":"MEDIUM","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL","baseScore":4.3},"severity":"MEDIUM","exploitabilityScore":8.6,"impactScore":2.9,"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:thunderbird:*:*:*:*:*:*:*:*","versionEndExcluding":"68.5.0","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2020","CveId":"6795","Ordinal":"167063","Title":"CVE-2020-6795","CVE":"CVE-2020-6795","Year":"2020"},"notes":[{"CveYear":"2020","CveId":"6795","Ordinal":"1","NoteData":"When processing a message that contains multiple S/MIME signatures, a bug in the MIME processing code caused a null pointer dereference, leading to an unexploitable crash. This vulnerability affects Thunderbird < 68.5.","Type":"Description","Title":null},{"CveYear":"2020","CveId":"6795","Ordinal":"2","NoteData":"2020-03-01","Type":"Other","Title":"Published"},{"CveYear":"2020","CveId":"6795","Ordinal":"3","NoteData":"2020-04-28","Type":"Other","Title":"Modified"}]}}}