{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-20T02:00:16.368","vulnerabilities":[{"cve":{"id":"CVE-2025-6436","sourceIdentifier":"security@mozilla.org","published":"2025-06-24T13:15:24.677","lastModified":"2026-04-13T15:17:08.313","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"Memory safety bugs present in Firefox 139 and Thunderbird 139. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 140 and Thunderbird 140."},{"lang":"es","value":"Errores de seguridad de memoria presentes en Firefox 139 y Thunderbird 139. Algunos de estos errores mostraron evidencia de corrupción de memoria y presumimos que, con suficiente esfuerzo, algunos de ellos podrían haberse explotado para ejecutar código arbitrario. Esta vulnerabilidad afecta a Firefox anterior a la versión 140."}],"metrics":{"cvssMetricV31":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":8.1,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":2.2,"impactScore":5.9}]},"weaknesses":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","description":[{"lang":"en","value":"CWE-119"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*","versionEndExcluding":"140.0","matchCriteriaId":"6BD96DBF-567C-4E36-844D-B25A4E22CE40"},{"vulnerable":true,"criteria":"cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*","versionEndExcluding":"140.0","matchCriteriaId":"EE6112E1-F482-4916-BA5E-68868793540F"}]}]}],"references":[{"url":"https://bugzilla.mozilla.org/buglist.cgi?bug_id=1941377%2C1960948%2C1966187%2C1966505%2C1970764%2C1942930","source":"security@mozilla.org","tags":["Permissions Required"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-51/","source":"security@mozilla.org","tags":["Vendor Advisory"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-54/","source":"security@mozilla.org","tags":["Vendor Advisory"]}]}}]}