{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-18T12:37:55.223","vulnerabilities":[{"cve":{"id":"CVE-2025-4091","sourceIdentifier":"security@mozilla.org","published":"2025-04-29T14:15:35.717","lastModified":"2026-04-13T15:17:00.890","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"Memory safety bugs present in Firefox 137, Thunderbird 137, Firefox ESR 128.9, and Thunderbird 128.9. 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 138, Firefox ESR 128.10, Thunderbird 138, and Thunderbird 128.10."},{"lang":"es","value":"Errores de seguridad de memoria presentes en Firefox 137, Thunderbird 137, Firefox ESR 128.9 y Thunderbird 128.9. 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 < 138, Firefox ESR < 128.10, Thunderbird < 138 y Thunderbird ESR < 128.10."}],"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:*:*:*:*:esr:*:*:*","versionEndExcluding":"128.10","matchCriteriaId":"3378E5EE-9ABF-444B-AA88-9EAF8D8058DE"},{"vulnerable":true,"criteria":"cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*","versionEndExcluding":"138.0","matchCriteriaId":"EB8A8C7B-B65D-4DF5-BDB5-0C3C4E2DB72C"},{"vulnerable":true,"criteria":"cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:*","versionEndExcluding":"128.10.0","matchCriteriaId":"DC19822B-CC07-4C6F-BAAD-C7A9C4E73FA9"},{"vulnerable":true,"criteria":"cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*","versionEndExcluding":"138.0","matchCriteriaId":"D1E8CCF1-4E91-44CC-A652-B23D1337A485"}]}]}],"references":[{"url":"https://bugzilla.mozilla.org/buglist.cgi?bug_id=1951161%2C1952105","source":"security@mozilla.org","tags":["Broken Link"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-28/","source":"security@mozilla.org","tags":["Vendor Advisory"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-29/","source":"security@mozilla.org","tags":["Vendor Advisory"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-31/","source":"security@mozilla.org","tags":["Vendor Advisory"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2025-32/","source":"security@mozilla.org","tags":["Vendor Advisory"]},{"url":"https://lists.debian.org/debian-lts-announce/2025/05/msg00024.html","source":"af854a3a-2127-422b-91ae-364da2661108"}]}}]}