{"api_version":"1","generated_at":"2026-06-16T19:14:54+00:00","cve":"CVE-2026-12312","urls":{"html":"https://cve.report/CVE-2026-12312","api":"https://cve.report/api/cve/CVE-2026-12312.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-12312","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-12312"},"summary":{"title":"Memory safety bug fixed in Thunderbird 152","description":"Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.","state":"PUBLISHED","assigner":"mozilla","published_at":"2026-06-16 13:16:31","updated_at":"2026-06-16 17:16:36"},"problem_types":[],"metrics":[],"references":[{"url":"https://www.mozilla.org/security/advisories/mfsa2026-58/","name":"https://www.mozilla.org/security/advisories/mfsa2026-58/","refsource":"security@mozilla.org","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-57/","name":"https://www.mozilla.org/security/advisories/mfsa2026-57/","refsource":"security@mozilla.org","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-61/","name":"https://www.mozilla.org/security/advisories/mfsa2026-61/","refsource":"security@mozilla.org","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-60/","name":"https://www.mozilla.org/security/advisories/mfsa2026-60/","refsource":"security@mozilla.org","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=2040383","name":"https://bugzilla.mozilla.org/show_bug.cgi?id=2040383","refsource":"security@mozilla.org","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-12312","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12312","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Mozilla","product":"Firefox","version":"unaffected 140.12 140.* rpm","platforms":[]},{"source":"CNA","vendor":"Mozilla","product":"Firefox","version":"unaffected 152 * rpm","platforms":[]},{"source":"CNA","vendor":"Mozilla","product":"Thunderbird","version":"unaffected 140.12 140.* rpm","platforms":[]},{"source":"CNA","vendor":"Mozilla","product":"Thunderbird","version":"unaffected 152 * rpm","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[{"source":"CNA","value":"Rintaro Kawasugi","lang":"en"}],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"product":"Firefox","vendor":"Mozilla","versions":[{"lessThanOrEqual":"140.*","status":"unaffected","version":"140.12","versionType":"rpm"},{"lessThanOrEqual":"*","status":"unaffected","version":"152","versionType":"rpm"}]},{"product":"Thunderbird","vendor":"Mozilla","versions":[{"lessThanOrEqual":"140.*","status":"unaffected","version":"140.12","versionType":"rpm"},{"lessThanOrEqual":"*","status":"unaffected","version":"152","versionType":"rpm"}]}],"credits":[{"lang":"en","value":"Rintaro Kawasugi"}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12."}],"value":"Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12."}],"providerMetadata":{"dateUpdated":"2026-06-16T16:08:37.679Z","orgId":"f16b083a-5664-49f3-a51e-8d479e5ed7fe","shortName":"mozilla"},"references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=2040383"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-57/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-58/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-60/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-61/"}],"title":"Memory safety bug fixed in Thunderbird 152"}},"cveMetadata":{"assignerOrgId":"f16b083a-5664-49f3-a51e-8d479e5ed7fe","assignerShortName":"mozilla","cveId":"CVE-2026-12312","datePublished":"2026-06-16T11:52:45.734Z","dateReserved":"2026-06-15T15:08:15.534Z","dateUpdated":"2026-06-16T16:08:37.679Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-06-16 13:16:31","lastModifiedDate":"2026-06-16 17:16:36","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"12312","Ordinal":"1","Title":"Memory safety bug fixed in Thunderbird 152","CVE":"CVE-2026-12312","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"12312","Ordinal":"1","NoteData":"Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.","Type":"Description","Title":"Memory safety bug fixed in Thunderbird 152"}]}}}