{"id":"CVE-2026-12307","revision":"aeee0f50c36740ceba7606e40cf6cebc","records":[{"revision":"aeee0f50c36740ceba7606e40cf6cebc","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-12307","aliases":[],"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":0,"publishedAt":"2026-06-16T11:52:40.757+00:00","modifiedAt":"2026-10-21T13:50:01.988+00:00","affected":[{"ecosystem":"Vendor product","name":"Firefox","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Firefox\",\n                    \"vendor\": \"Mozilla\",\n                    \"versions\": [\n                        {\n                            \"status\": \"unaffected\",\n                            \"version\": \"140.12\",\n                            \"lessThanOrEqual\": \"140.*\",\n                            \"versionType\": \"rpm\"\n                        },\n                        {\n                            \"status\": \"unaffected\",\n                            \"version\": \"152\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"versionType\": \"rpm\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Thunderbird","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Thunderbird\",\n                    \"vendor\": \"Mozilla\",\n                    \"versions\": [\n                        {\n                            \"status\": \"unaffected\",\n                            \"version\": \"140.12\",\n                            \"lessThanOrEqual\": \"140.*\",\n                            \"versionType\": \"rpm\"\n                        },\n                        {\n                            \"status\": \"unaffected\",\n                            \"version\": \"152\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"versionType\": \"rpm\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://bugzilla.mozilla.org/show_bug.cgi?id=2038133","https://www.mozilla.org/security/advisories/mfsa2026-57/","https://www.mozilla.org/security/advisories/mfsa2026-58/","https://www.mozilla.org/security/advisories/mfsa2026-60/","https://www.mozilla.org/security/advisories/mfsa2026-61/"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-12307","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-12307","identifiers":["CVE-2026-12307"]},"retained":false,"historicalAffected":[]}],"coverage":[]}