{"id":"CVE-2025-1009","state":"PUBLISHED","title":"Use-after-free in XSLT","description":"An attacker could have caused a use-after-free via crafted XSLT data, leading to a potentially exploitable crash. This vulnerability was fixed in Firefox 135, Firefox ESR 115.20, Firefox ESR 128.7, Thunderbird 128.7, and Thunderbird 135.","publishedAt":"2025-02-04T13:58:51.928Z","updatedAt":"2026-04-13T14:25:07.080Z","severity":{"score":9.8,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","source":"CISA-ADP"},"assigner":"mozilla","products":["Mozilla Firefox","Mozilla Thunderbird"],"affected":[{"vendor":"Mozilla","product":"Firefox","versions":[{"version":"115.20","status":"unaffected","lessThanOrEqual":"115.*","versionType":"rpm"},{"version":"128.7","status":"unaffected","lessThanOrEqual":"128.*","versionType":"rpm"},{"version":"135","status":"unaffected","lessThanOrEqual":"*","versionType":"rpm"}]},{"vendor":"Mozilla","product":"Thunderbird","versions":[{"version":"128.7","status":"unaffected","lessThanOrEqual":"128.*","versionType":"rpm"},{"version":"135","status":"unaffected","lessThanOrEqual":"*","versionType":"rpm"}]}],"references":["https://bugzilla.mozilla.org/show_bug.cgi?id=1936613","https://www.mozilla.org/security/advisories/mfsa2025-07/","https://www.mozilla.org/security/advisories/mfsa2025-08/","https://www.mozilla.org/security/advisories/mfsa2025-09/","https://www.mozilla.org/security/advisories/mfsa2025-10/","https://www.mozilla.org/security/advisories/mfsa2025-11/","https://lists.debian.org/debian-lts-announce/2025/02/msg00006.html","https://lists.debian.org/debian-lts-announce/2025/02/msg00005.html"],"weaknesses":["CWE-416"],"ingestedAt":"2026-10-29T20:08:39.238Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/1xxx/CVE-2025-1009.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-1009","state":"PUBLISHED","datePublished":"2025-02-04T13:58:51.928Z","dateUpdated":"2026-04-13T14:25:07.080Z","assignerShortName":"mozilla","assignerOrgId":"f16b083a-5664-49f3-a51e-8d479e5ed7fe","dateReserved":"2025-02-04T07:26:24.494Z"},"containers":{"cna":{"title":"Use-after-free in XSLT","descriptions":[{"lang":"en","value":"An attacker could have caused a use-after-free via crafted XSLT data, leading to a potentially exploitable crash. This vulnerability was fixed in Firefox 135, Firefox ESR 115.20, Firefox ESR 128.7, Thunderbird 128.7, and Thunderbird 135."}],"affected":[{"vendor":"Mozilla","product":"Firefox","versions":[{"version":"115.20","status":"unaffected","lessThanOrEqual":"115.*","versionType":"rpm"},{"version":"128.7","status":"unaffected","lessThanOrEqual":"128.*","versionType":"rpm"},{"version":"135","status":"unaffected","lessThanOrEqual":"*","versionType":"rpm"}]},{"vendor":"Mozilla","product":"Thunderbird","versions":[{"version":"128.7","status":"unaffected","lessThanOrEqual":"128.*","versionType":"rpm"},{"version":"135","status":"unaffected","lessThanOrEqual":"*","versionType":"rpm"}]}],"references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1936613"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-07/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-08/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-09/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-10/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-11/"}],"providerMetadata":{"shortName":"mozilla","orgId":"f16b083a-5664-49f3-a51e-8d479e5ed7fe","dateUpdated":"2026-04-13T14:25:07.080Z"},"credits":[{"lang":"en","value":"Ivan Fratric of Google Project Zero"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":9.8,"attackVector":"NETWORK","baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"id":"CVE-2025-1009","role":"CISA Coordinator","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"total"}],"version":"2.0.3","timestamp":"2025-03-14T03:55:36.276614Z"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-416","lang":"en","type":"CWE","description":"CWE-416 Use After Free"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-02-26T19:09:24.074Z"}},{"title":"CVE Program Container","references":[{"url":"https://lists.debian.org/debian-lts-announce/2025/02/msg00006.html"},{"url":"https://lists.debian.org/debian-lts-announce/2025/02/msg00005.html"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2025-11-03T20:56:46.086Z"}}]}}}