{"id":"CVE-2025-0240","state":"PUBLISHED","title":"Compartment mismatch when parsing JavaScript JSON module","description":"Parsing a JavaScript module as JSON could, under some circumstances, cause cross-compartment access, which may result in a use-after-free. This vulnerability was fixed in Firefox 134, Firefox ESR 128.6, Thunderbird 134, and Thunderbird 128.6.","publishedAt":"2025-01-07T16:07:06.551Z","updatedAt":"2026-04-13T14:30:06.768Z","severity":{"score":4,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","source":"CISA-ADP"},"assigner":"mozilla","products":["Mozilla Firefox","Mozilla Thunderbird"],"affected":[{"vendor":"Mozilla","product":"Firefox","versions":[{"version":"128.6","status":"unaffected","lessThanOrEqual":"128.*","versionType":"rpm"},{"version":"134","status":"unaffected","lessThanOrEqual":"*","versionType":"rpm"}]},{"vendor":"Mozilla","product":"Thunderbird","versions":[{"version":"128.6","status":"unaffected","lessThanOrEqual":"128.*","versionType":"rpm"},{"version":"134","status":"unaffected","lessThanOrEqual":"*","versionType":"rpm"}]}],"references":["https://bugzilla.mozilla.org/show_bug.cgi?id=1929623","https://www.mozilla.org/security/advisories/mfsa2025-01/","https://www.mozilla.org/security/advisories/mfsa2025-02/","https://www.mozilla.org/security/advisories/mfsa2025-04/","https://www.mozilla.org/security/advisories/mfsa2025-05/","https://lists.debian.org/debian-lts-announce/2025/01/msg00004.html"],"weaknesses":["CWE-416"],"ingestedAt":"2026-10-29T20:08:20.985Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/0xxx/CVE-2025-0240.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-0240","state":"PUBLISHED","datePublished":"2025-01-07T16:07:06.551Z","dateUpdated":"2026-04-13T14:30:06.768Z","assignerShortName":"mozilla","assignerOrgId":"f16b083a-5664-49f3-a51e-8d479e5ed7fe","dateReserved":"2025-01-06T14:49:06.842Z"},"containers":{"cna":{"title":"Compartment mismatch when parsing JavaScript JSON module","descriptions":[{"lang":"en","value":"Parsing a JavaScript module as JSON could, under some circumstances, cause cross-compartment access, which may result in a use-after-free. This vulnerability was fixed in Firefox 134, Firefox ESR 128.6, Thunderbird 134, and Thunderbird 128.6."}],"affected":[{"vendor":"Mozilla","product":"Firefox","versions":[{"version":"128.6","status":"unaffected","lessThanOrEqual":"128.*","versionType":"rpm"},{"version":"134","status":"unaffected","lessThanOrEqual":"*","versionType":"rpm"}]},{"vendor":"Mozilla","product":"Thunderbird","versions":[{"version":"128.6","status":"unaffected","lessThanOrEqual":"128.*","versionType":"rpm"},{"version":"134","status":"unaffected","lessThanOrEqual":"*","versionType":"rpm"}]}],"references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1929623"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-01/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-02/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-04/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-05/"}],"providerMetadata":{"shortName":"mozilla","orgId":"f16b083a-5664-49f3-a51e-8d479e5ed7fe","dateUpdated":"2026-04-13T14:30:06.768Z"},"credits":[{"lang":"en","value":"Nils Bars"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":4,"attackVector":"LOCAL","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","integrityImpact":"LOW","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"NONE","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2025-01-08T16:36:55.988099Z","id":"CVE-2025-0240","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-416","type":"CWE","lang":"en","description":"CWE-416 Use After Free"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-01-08T16:39:33.123Z"}},{"title":"CVE Program Container","references":[{"url":"https://lists.debian.org/debian-lts-announce/2025/01/msg00004.html"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2025-11-03T22:33:40.588Z"}}]}}}