{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-06-21T05:05:41.543","vulnerabilities":[{"cve":{"id":"CVE-2018-5174","sourceIdentifier":"security@mozilla.org","published":"2018-06-11T21:29:15.983","lastModified":"2026-06-17T01:59:46.120","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"In the Windows 10 April 2018 Update, Windows Defender SmartScreen honors the \"SEE_MASK_FLAG_NO_UI\" flag associated with downloaded files and will not show any UI. Files that are unknown and potentially dangerous will be allowed to run because SmartScreen will not prompt the user for a decision, and if the user is offline all files will be allowed to be opened because Windows won't prompt the user to ask what to do. Firefox incorrectly sets this flag when downloading files, leading to less secure behavior from SmartScreen. Note: this issue only affects Windows 10 users running the April 2018 update or later. It does not affect other Windows users or other operating systems. This vulnerability affects Thunderbird < 52.8, Thunderbird ESR < 52.8, Firefox < 60, and Firefox ESR < 52.8."},{"lang":"es","value":"En la actualización de Windows 10 de abril de 2018, Windows Defender SmartScreen establece el flag \"SEE_MASK_FLAG_NO_UI\" asociado a los archivos descargados y no mostrará ninguna interfaz de usuario. Los archivos desconocidos y potencialmente peligrosos podrán ejecutarse porque SmartScreen no le pedirá al usuario que tome una decisión y, si el usuario está desconectado, todos los archivos podrán abrirse porque Windows no le preguntará al usuario qué hacer. Firefox establece incorrectamente este flag al descargar archivos, lo que provoca un comportamiento menos seguro desde SmartScreen. Nota: este problema sólo afecta a los usuarios de Windows 10 que ejecuten la actualización de abril de 2018 o posterior. No afecta a otros usuarios de Windows ni a otros sistemas operativos. Esta vulnerabilidad afecta a las versiones anteriores a la 52.8 de Thunderbird, las versiones anteriores a la 52.8 de Thunderbird ESR, las versiones anteriores a la 60 de Firefox y las versiones anteriores a la 52.8 de Firefox ESR."}],"affected":[{"source":"security@mozilla.org","affectedData":[{"vendor":"Mozilla","product":"Thunderbird","versions":[{"version":"unspecified","lessThan":"52.8","versionType":"custom","status":"affected"}]},{"vendor":"Mozilla","product":"Thunderbird ESR","versions":[{"version":"unspecified","lessThan":"52.8","versionType":"custom","status":"affected"}]},{"vendor":"Mozilla","product":"Firefox","versions":[{"version":"unspecified","lessThan":"60","versionType":"custom","status":"affected"}]},{"vendor":"Mozilla","product":"Firefox ESR","versions":[{"version":"unspecified","lessThan":"52.8","versionType":"custom","status":"affected"}]}]}],"metrics":{"cvssMetricV30":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.0","vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"HIGH","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:N/I:P/A:N","baseScore":5.0,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"PARTIAL","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":"NVD-CWE-noinfo"}]}],"configurations":[{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*","versionEndExcluding":"52.8.0","matchCriteriaId":"7D3CA9AE-459C-4375-91EB-CD724368798D"},{"vulnerable":true,"criteria":"cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*","versionEndExcluding":"60.0","matchCriteriaId":"1AD89C37-DC57-40D3-80CE-5126A6C142E8"},{"vulnerable":true,"criteria":"cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*","versionEndExcluding":"52.8.0","matchCriteriaId":"6216B631-0AF7-4438-8575-F23342715F8F"},{"vulnerable":true,"criteria":"cpe:2.3:a:mozilla:thunderbird_esr:*:*:*:*:*:*:*:*","versionEndExcluding":"52.8.0","matchCriteriaId":"5B2A31F2-59B8-4342-B81D-E85DF72EE51A"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:*","matchCriteriaId":"21540673-614A-4D40-8BD7-3F07723803B0"}]}]}],"references":[{"url":"http://www.securityfocus.com/bid/104136","source":"security@mozilla.org","tags":["Third Party Advisory","VDB Entry"]},{"url":"http://www.securitytracker.com/id/1040896","source":"security@mozilla.org","tags":["Third Party Advisory","VDB Entry"]},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1447080","source":"security@mozilla.org","tags":["Issue Tracking","Permissions Required","Third Party Advisory"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2018-11/","source":"security@mozilla.org","tags":["Vendor Advisory"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2018-12/","source":"security@mozilla.org","tags":["Vendor Advisory"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2018-13/","source":"security@mozilla.org","tags":["Vendor Advisory"]},{"url":"http://www.securityfocus.com/bid/104136","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory","VDB Entry"]},{"url":"http://www.securitytracker.com/id/1040896","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory","VDB Entry"]},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1447080","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Issue Tracking","Permissions Required","Third Party Advisory"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2018-11/","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2018-12/","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2018-13/","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"]}]}}]}