{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-06-27T21:44:57.070","vulnerabilities":[{"cve":{"id":"CVE-2021-29990","sourceIdentifier":"security@mozilla.org","published":"2021-08-17T20:15:08.093","lastModified":"2026-06-17T03:48:34.127","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"Mozilla developers and community members reported memory safety bugs present in Firefox 90. 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 affects Firefox < 91."},{"lang":"es","value":"Los desarrolladores de Mozilla y los miembros de la comunidad informaron de bugs de seguridad de memoria presentes en Firefox versión 90. Algunos de estos bugs mostraron evidencias de corrupción de la memoria y presumimos que con esfuerzo suficiente algunos de ellos podrían haber sido explotados para ejecutar código arbitrario. Esta vulnerabilidad afecta a Firefox versiones anteriores a 91."}],"affected":[{"source":"security@mozilla.org","affectedData":[{"vendor":"Mozilla","product":"Firefox","versions":[{"version":"unspecified","lessThan":"91","versionType":"custom","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","baseScore":8.8,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":2.8,"impactScore":5.9}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:M/Au:N/C:P/I:P/A:P","baseScore":6.8,"accessVector":"NETWORK","accessComplexity":"MEDIUM","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL"},"baseSeverity":"MEDIUM","exploitabilityScore":8.6,"impactScore":6.4,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":true}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-787"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*","versionEndExcluding":"91.0","matchCriteriaId":"E2960D13-5DCE-4A97-8586-B259C31DEBFE"}]}]}],"references":[{"url":"https://bugzilla.mozilla.org/buglist.cgi?bug_id=1544190%2C1716481%2C1717778%2C1719319%2C1722073","source":"security@mozilla.org","tags":["Broken Link","Issue Tracking","Vendor Advisory"]},{"url":"https://security.gentoo.org/glsa/202202-03","source":"security@mozilla.org","tags":["Third Party Advisory"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2021-33/","source":"security@mozilla.org","tags":["Vendor Advisory"]},{"url":"https://bugzilla.mozilla.org/buglist.cgi?bug_id=1544190%2C1716481%2C1717778%2C1719319%2C1722073","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Broken Link","Issue Tracking","Vendor Advisory"]},{"url":"https://security.gentoo.org/glsa/202202-03","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2021-33/","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"]}]}}]}