{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-4919","assignerOrgId":"f16b083a-5664-49f3-a51e-8d479e5ed7fe","state":"PUBLISHED","assignerShortName":"mozilla","dateReserved":"2025-05-17T19:40:53.416Z","datePublished":"2025-05-17T21:07:27.734Z","dateUpdated":"2026-04-13T14:25:56.780Z"},"containers":{"cna":{"affected":[{"product":"Firefox","vendor":"Mozilla","versions":[{"status":"unaffected","version":"115.23.1","lessThanOrEqual":"115.*","versionType":"rpm"},{"status":"unaffected","version":"128.10.1","lessThanOrEqual":"128.*","versionType":"rpm"},{"status":"unaffected","version":"138.0.4","lessThanOrEqual":"*","versionType":"rpm"}]},{"product":"Thunderbird","vendor":"Mozilla","versions":[{"status":"unaffected","version":"128.10.2","lessThanOrEqual":"128.*","versionType":"rpm"},{"status":"unaffected","version":"138.0.2","lessThanOrEqual":"*","versionType":"rpm"}]}],"descriptions":[{"lang":"en","value":"An attacker was able to perform an out-of-bounds read or write on a JavaScript object by confusing array index sizes. This vulnerability was fixed in Firefox 138.0.4, Firefox ESR 128.10.1, Firefox ESR 115.23.1, Thunderbird 128.10.2, and Thunderbird 138.0.2.","supportingMedia":[{"type":"text/html","base64":false,"value":"An attacker was able to perform an out-of-bounds read or write on a JavaScript object by confusing array index sizes. This vulnerability was fixed in Firefox 138.0.4, Firefox ESR 128.10.1, Firefox ESR 115.23.1, Thunderbird 128.10.2, and Thunderbird 138.0.2."}]}],"title":"Out-of-bounds access when optimizing linear sums","references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1966614"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-36/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-37/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-38/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-40/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-41/"}],"credits":[{"lang":"en","value":"Manfred Paul working with Trend Micro's Zero Day Initiative"}],"providerMetadata":{"orgId":"f16b083a-5664-49f3-a51e-8d479e5ed7fe","shortName":"mozilla","dateUpdated":"2026-04-13T14:25:56.780Z"}},"adp":[{"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":8.8,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"REQUIRED","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"id":"CVE-2025-4919","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"version":"2.0.3","timestamp":"2025-05-20T03:55:18.550351Z"}}}],"problemTypes":[{"descriptions":[{"lang":"en","type":"CWE","cweId":"CWE-125","description":"CWE-125 Out-of-bounds Read"}]},{"descriptions":[{"lang":"en","type":"CWE","cweId":"CWE-787","description":"CWE-787 Out-of-bounds Write"}]}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-02-26T18:28:06.157Z"}},{"title":"CVE Program Container","references":[{"url":"https://lists.debian.org/debian-lts-announce/2025/05/msg00046.html"},{"url":"https://lists.debian.org/debian-lts-announce/2025/05/msg00024.html"}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2025-11-03T20:05:22.225Z"}}]}}