{"api_version":"1","generated_at":"2026-07-23T07:46:57+00:00","cve":"CVE-2014-1558","urls":{"html":"https://cve.report/CVE-2014-1558","api":"https://cve.report/api/cve/CVE-2014-1558.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2014-1558","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2014-1558"},"summary":{"title":"CVE-2014-1558","description":"Mozilla Firefox before 31.0 and Thunderbird before 31.0 allow remote attackers to cause a denial of service (X.509 certificate parsing outage) via a crafted certificate that does not use UTF-8 character encoding in a required context, a different vulnerability than CVE-2014-1559.","state":"PUBLISHED","assigner":"mozilla","published_at":"2014-07-23 11:12:43","updated_at":"2026-05-06 22:30:45"},"problem_types":["NVD-CWE-Other","n/a"],"metrics":[{"version":"2.0","source":"nvd@nist.gov","type":"Primary","score":"4.3","severity":"","vector":"AV:N/AC:M/Au:N/C:N/I:N/A:P","data":{"version":"2.0","vectorString":"AV:N/AC:M/Au:N/C:N/I:N/A:P","baseScore":4.3,"accessVector":"NETWORK","accessComplexity":"MEDIUM","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL"}}],"references":[{"url":"https://security.gentoo.org/glsa/201504-01","name":"https://security.gentoo.org/glsa/201504-01","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"Gentoo Security","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.mozilla.org/security/announce/2014/mfsa2014-65.html","name":"http://www.mozilla.org/security/announce/2014/mfsa2014-65.html","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"],"title":"MFSA 2014-65: Certificate parsing broken by non-standard character encoding","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://secunia.com/advisories/60628","name":"http://secunia.com/advisories/60628","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"Security Advisory SA60628 - SUSE update for MozillaFirefox - Secunia","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.securitytracker.com/id/1030620","name":"http://www.securitytracker.com/id/1030620","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"Mozilla Thunderbird Multiple Flaws Let Remote Users Deny Service and Execute Arbitrary Code - SecurityTracker","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1015973","name":"https://bugzilla.mozilla.org/show_bug.cgi?id=1015973","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"Access Denied","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.securitytracker.com/id/1030619","name":"http://www.securitytracker.com/id/1030619","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"Mozilla Firefox Multiple Flaws Let Remote Users Execute Arbitrary Code, Deny Service, and Spoof User Interface Elements - SecurityTracker","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2014-1558","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2014-1558","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"n/a","product":"n/a","version":"affected n/a","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2014","cve_id":"1558","vulnerable":"1","versionEndIncluding":"30.0","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"mozilla","cpe5":"firefox","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2014","cve_id":"1558","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"mozilla","cpe5":"thunderbird","cpe6":"24.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2014","cve_id":"1558","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"mozilla","cpe5":"thunderbird","cpe6":"24.0.1","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2014","cve_id":"1558","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"mozilla","cpe5":"thunderbird","cpe6":"24.1","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2014","cve_id":"1558","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"mozilla","cpe5":"thunderbird","cpe6":"24.1.1","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2014","cve_id":"1558","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"mozilla","cpe5":"thunderbird","cpe6":"24.2","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2014","cve_id":"1558","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"mozilla","cpe5":"thunderbird","cpe6":"24.3","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2014","cve_id":"1558","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"mozilla","cpe5":"thunderbird","cpe6":"24.4","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2014","cve_id":"1558","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"mozilla","cpe5":"thunderbird","cpe6":"24.5","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2014","cve_id":"1558","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"mozilla","cpe5":"thunderbird","cpe6":"24.6","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2014","cve_id":"1558","vulnerable":"1","versionEndIncluding":"24.7","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"mozilla","cpe5":"thunderbird","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"providerMetadata":{"dateUpdated":"2024-08-06T09:42:36.395Z","orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE"},"references":[{"tags":["x_refsource_CONFIRM","x_transferred"],"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1015973"},{"name":"GLSA-201504-01","tags":["vendor-advisory","x_refsource_GENTOO","x_transferred"],"url":"https://security.gentoo.org/glsa/201504-01"},{"name":"1030620","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"],"url":"http://www.securitytracker.com/id/1030620"},{"tags":["x_refsource_CONFIRM","x_transferred"],"url":"http://www.mozilla.org/security/announce/2014/mfsa2014-65.html"},{"name":"1030619","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"],"url":"http://www.securitytracker.com/id/1030619"},{"name":"60628","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"],"url":"http://secunia.com/advisories/60628"}],"title":"CVE Program Container"}],"cna":{"affected":[{"product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}]}],"datePublic":"2014-07-22T00:00:00.000Z","descriptions":[{"lang":"en","value":"Mozilla Firefox before 31.0 and Thunderbird before 31.0 allow remote attackers to cause a denial of service (X.509 certificate parsing outage) via a crafted certificate that does not use UTF-8 character encoding in a required context, a different vulnerability than CVE-2014-1559."}],"problemTypes":[{"descriptions":[{"description":"n/a","lang":"en","type":"text"}]}],"providerMetadata":{"dateUpdated":"2017-01-04T20:57:01.000Z","orgId":"f16b083a-5664-49f3-a51e-8d479e5ed7fe","shortName":"mozilla"},"references":[{"tags":["x_refsource_CONFIRM"],"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1015973"},{"name":"GLSA-201504-01","tags":["vendor-advisory","x_refsource_GENTOO"],"url":"https://security.gentoo.org/glsa/201504-01"},{"name":"1030620","tags":["vdb-entry","x_refsource_SECTRACK"],"url":"http://www.securitytracker.com/id/1030620"},{"tags":["x_refsource_CONFIRM"],"url":"http://www.mozilla.org/security/announce/2014/mfsa2014-65.html"},{"name":"1030619","tags":["vdb-entry","x_refsource_SECTRACK"],"url":"http://www.securitytracker.com/id/1030619"},{"name":"60628","tags":["third-party-advisory","x_refsource_SECUNIA"],"url":"http://secunia.com/advisories/60628"}],"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"security@mozilla.org","ID":"CVE-2014-1558","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"n/a","version":{"version_data":[{"version_value":"n/a"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"Mozilla Firefox before 31.0 and Thunderbird before 31.0 allow remote attackers to cause a denial of service (X.509 certificate parsing outage) via a crafted certificate that does not use UTF-8 character encoding in a required context, a different vulnerability than CVE-2014-1559."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"name":"https://bugzilla.mozilla.org/show_bug.cgi?id=1015973","refsource":"CONFIRM","url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1015973"},{"name":"GLSA-201504-01","refsource":"GENTOO","url":"https://security.gentoo.org/glsa/201504-01"},{"name":"1030620","refsource":"SECTRACK","url":"http://www.securitytracker.com/id/1030620"},{"name":"http://www.mozilla.org/security/announce/2014/mfsa2014-65.html","refsource":"CONFIRM","url":"http://www.mozilla.org/security/announce/2014/mfsa2014-65.html"},{"name":"1030619","refsource":"SECTRACK","url":"http://www.securitytracker.com/id/1030619"},{"name":"60628","refsource":"SECUNIA","url":"http://secunia.com/advisories/60628"}]}}}},"cveMetadata":{"assignerOrgId":"f16b083a-5664-49f3-a51e-8d479e5ed7fe","assignerShortName":"mozilla","cveId":"CVE-2014-1558","datePublished":"2014-07-23T10:00:00.000Z","dateReserved":"2014-01-16T00:00:00.000Z","dateUpdated":"2024-08-06T09:42:36.395Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.1"},"nvd":{"publishedDate":"2014-07-23 11:12:43","lastModifiedDate":"2026-05-06 22:30:45","problem_types":["NVD-CWE-Other","n/a"],"metrics":{"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:M/Au:N/C:N/I:N/A:P","baseScore":4.3,"accessVector":"NETWORK","accessComplexity":"MEDIUM","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL"},"baseSeverity":"MEDIUM","exploitabilityScore":8.6,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*","versionEndIncluding":"30.0","matchCriteriaId":"3BD70C79-7EA7-49CB-B3D6-6C77E0C55BB4"},{"vulnerable":true,"criteria":"cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*","versionEndIncluding":"24.7","matchCriteriaId":"356BAADA-819E-44B8-A3B0-BE53059C3F8D"},{"vulnerable":true,"criteria":"cpe:2.3:a:mozilla:thunderbird:24.0:*:*:*:*:*:*:*","matchCriteriaId":"7CCAFDF1-10BB-4AB0-9C9D-E99DDBA901BB"},{"vulnerable":true,"criteria":"cpe:2.3:a:mozilla:thunderbird:24.0.1:*:*:*:*:*:*:*","matchCriteriaId":"31EE89B8-705F-4A05-9015-3D6E81D394E9"},{"vulnerable":true,"criteria":"cpe:2.3:a:mozilla:thunderbird:24.1:*:*:*:*:*:*:*","matchCriteriaId":"E30AE3D4-6A3E-435E-BDBF-1A9A17297433"},{"vulnerable":true,"criteria":"cpe:2.3:a:mozilla:thunderbird:24.1.1:*:*:*:*:*:*:*","matchCriteriaId":"B0C705A0-62C0-485A-A077-C7DD426F80B5"},{"vulnerable":true,"criteria":"cpe:2.3:a:mozilla:thunderbird:24.2:*:*:*:*:*:*:*","matchCriteriaId":"66C802A7-E4D5-4D2D-9CE8-749A75DF7461"},{"vulnerable":true,"criteria":"cpe:2.3:a:mozilla:thunderbird:24.3:*:*:*:*:*:*:*","matchCriteriaId":"4E8A57FA-AC27-4288-8E42-97DECF3B993C"},{"vulnerable":true,"criteria":"cpe:2.3:a:mozilla:thunderbird:24.4:*:*:*:*:*:*:*","matchCriteriaId":"1D474B11-98D0-41A3-A98B-CFB6955264AE"},{"vulnerable":true,"criteria":"cpe:2.3:a:mozilla:thunderbird:24.5:*:*:*:*:*:*:*","matchCriteriaId":"6BBD940E-9EF0-460B-A721-E70C719F2244"},{"vulnerable":true,"criteria":"cpe:2.3:a:mozilla:thunderbird:24.6:*:*:*:*:*:*:*","matchCriteriaId":"063FC215-D9D2-40D0-A8A5-6289890EF9B3"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2014","CveId":"1558","Ordinal":"1","Title":"CVE-2014-1558","CVE":"CVE-2014-1558","Year":"2014"},"notes":[{"CveYear":"2014","CveId":"1558","Ordinal":"1","NoteData":"Mozilla Firefox before 31.0 and Thunderbird before 31.0 allow remote attackers to cause a denial of service (X.509 certificate parsing outage) via a crafted certificate that does not use UTF-8 character encoding in a required context, a different vulnerability than CVE-2014-1559.","Type":"Description","Title":"CVE-2014-1558"},{"CveYear":"2014","CveId":"1558","Ordinal":"2","NoteData":"2014-07-23","Type":"Other","Title":"Published"},{"CveYear":"2014","CveId":"1558","Ordinal":"3","NoteData":"2017-01-04","Type":"Other","Title":"Modified"}]}}}