{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-21T00:53:52.222","vulnerabilities":[{"cve":{"id":"CVE-2020-6821","sourceIdentifier":"security@mozilla.org","published":"2020-04-24T16:15:13.510","lastModified":"2024-11-21T05:36:14.410","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"When reading from areas partially or fully outside the source resource with WebGL's <code>copyTexSubImage</code> method, the specification requires the returned values be zero. Previously, this memory was uninitialized, leading to potentially sensitive data disclosure. This vulnerability affects Thunderbird < 68.7.0, Firefox ESR < 68.7, and Firefox < 75."},{"lang":"es","value":"Cuando se lee desde áreas parcial o completamente fuera del recurso fuente con el método <code>copyTexSubImage</code> de WebGL, la especificación requiere que los valores devueltos sean cero. Anteriormente, esta memoria no fue inicializada, conllevando a una divulgación de datos potencialmente confidenciales. Esta vulnerabilidad afecta a Thunderbird versiones anteriores a 68.7.0, Firefox ESR versiones anteriores a 68.7 y Firefox versiones anteriores a 75."}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE"},"exploitabilityScore":3.9,"impactScore":3.6}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:P/I:N/A:N","baseScore":5.0,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"NONE","availabilityImpact":"NONE"},"baseSeverity":"MEDIUM","exploitabilityScore":10.0,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-908"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*","versionEndExcluding":"75.0","matchCriteriaId":"925D894A-1609-43FB-94FE-84B3EAB9CE72"},{"vulnerable":true,"criteria":"cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*","versionEndExcluding":"68.7.0","matchCriteriaId":"D5D6475F-6C46-4BF0-B372-900A5B9FAED5"},{"vulnerable":true,"criteria":"cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*","versionEndExcluding":"68.7.0","matchCriteriaId":"CF7AEB5A-A52E-45E7-AFBF-546C351A4915"}]}]}],"references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1625404","source":"security@mozilla.org","tags":["Issue Tracking","Permissions Required"]},{"url":"https://usn.ubuntu.com/4335-1/","source":"security@mozilla.org","tags":["Third Party Advisory"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2020-12/","source":"security@mozilla.org","tags":["Vendor Advisory"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2020-13/","source":"security@mozilla.org","tags":["Vendor Advisory"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2020-14/","source":"security@mozilla.org","tags":["Vendor Advisory"]},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1625404","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Issue Tracking","Permissions Required"]},{"url":"https://usn.ubuntu.com/4335-1/","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2020-12/","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2020-13/","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2020-14/","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"]}]}}]}