{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-17T08:30:14.317","vulnerabilities":[{"cve":{"id":"CVE-2026-0891","sourceIdentifier":"security@mozilla.org","published":"2026-01-13T14:16:39.627","lastModified":"2026-04-13T15:17:18.613","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"Memory safety bugs present in Firefox ESR 140.6, Thunderbird ESR 140.6, Firefox 146 and Thunderbird 146. 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 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7."},{"lang":"es","value":"Errores de seguridad de memoria presentes en Firefox ESR 140.6, Thunderbird ESR 140.6, Firefox 146 y Thunderbird 146. Algunos de estos errores mostraron evidencia de corrupción de memoria y presumimos que con suficiente esfuerzo algunos de estos podrían haber sido explotados para ejecutar código arbitrario. Esta vulnerabilidad afecta a Firefox < 147, Firefox ESR < 140.7, Thunderbird < 147 y Thunderbird < 140.7."}],"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":"140.7.0","matchCriteriaId":"A2FC50B3-5A36-4702-8CF6-CC732E3B148B"},{"vulnerable":true,"criteria":"cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*","versionEndExcluding":"147.0","matchCriteriaId":"E06AF540-011D-4249-9815-3A4609DD26D1"},{"vulnerable":true,"criteria":"cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:*","versionEndExcluding":"140.7.0","matchCriteriaId":"BFBAB968-3244-4970-8D02-CCF9D5FB958D"},{"vulnerable":true,"criteria":"cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*","versionEndExcluding":"147.0","matchCriteriaId":"47B67C0A-B05F-4212-9255-0446302237A5"}]}]}],"references":[{"url":"https://bugzilla.mozilla.org/buglist.cgi?bug_id=1964722%2C2000981%2C2003100%2C2003278","source":"security@mozilla.org","tags":["Broken Link"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-01/","source":"security@mozilla.org","tags":["Vendor Advisory"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-03/","source":"security@mozilla.org","tags":["Vendor Advisory"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-04/","source":"security@mozilla.org","tags":["Vendor Advisory"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-05/","source":"security@mozilla.org","tags":["Vendor Advisory"]}]}}]}