{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-12310","assignerOrgId":"f16b083a-5664-49f3-a51e-8d479e5ed7fe","state":"PUBLISHED","assignerShortName":"mozilla","dateReserved":"2026-06-15T15:08:14.693Z","datePublished":"2026-06-16T11:52:43.757Z","dateUpdated":"2026-06-18T18:00:51.655Z"},"containers":{"cna":{"affected":[{"product":"Firefox","vendor":"Mozilla","versions":[{"status":"unaffected","version":"140.12","lessThanOrEqual":"140.*","versionType":"rpm"},{"status":"unaffected","version":"152","lessThanOrEqual":"*","versionType":"rpm"}]},{"product":"Thunderbird","vendor":"Mozilla","versions":[{"status":"unaffected","version":"140.12","lessThanOrEqual":"140.*","versionType":"rpm"},{"status":"unaffected","version":"152","lessThanOrEqual":"*","versionType":"rpm"}]}],"descriptions":[{"lang":"en","value":"Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.","supportingMedia":[{"type":"text/html","base64":false,"value":"Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12."}]}],"title":"Memory safety bug fixed in Firefox 152","references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=2039707"},{"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/"}],"credits":[{"lang":"en","value":"Carl Pearson"}],"providerMetadata":{"orgId":"f16b083a-5664-49f3-a51e-8d479e5ed7fe","shortName":"mozilla","dateUpdated":"2026-06-18T18:00:51.655Z"}},"adp":[{"problemTypes":[{"descriptions":[{"type":"CWE","cweId":"CWE-119","lang":"en","description":"CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer"}]},{"descriptions":[{"type":"CWE","cweId":"CWE-416","lang":"en","description":"CWE-416 Use After Free"}]},{"descriptions":[{"type":"CWE","cweId":"CWE-787","lang":"en","description":"CWE-787 Out-of-bounds Write"}]},{"descriptions":[{"type":"CWE","cweId":"CWE-125","lang":"en","description":"CWE-125 Out-of-bounds Read"}]}],"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.5,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-06-16T18:16:11.822831Z","id":"CVE-2026-12310","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-06-16T18:16:51.395Z"}}]}}