{"api_version":"1","generated_at":"2026-07-23T08:57:02+00:00","cve":"CVE-2016-8503","urls":{"html":"https://cve.report/CVE-2016-8503","api":"https://cve.report/api/cve/CVE-2016-8503.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2016-8503","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2016-8503"},"summary":{"title":"CVE-2016-8503","description":"Yandex Protect Anti-phishing warning in Yandex Browser for desktop from version 16.7 to 16.9 could be used by remote attacker for brute-forcing passwords from important web-resource with special JavaScript.","state":"PUBLISHED","assigner":"yandex","published_at":"2016-10-26 18:59:04","updated_at":"2026-05-06 22:30:45"},"problem_types":["CWE-254","Password brute-force through Yandex Protect Anti-phishing message"],"metrics":[{"version":"3.0","source":"nvd@nist.gov","type":"Primary","score":"7.3","severity":"HIGH","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","data":{"version":"3.0","vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","baseScore":7.3,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"LOW"}},{"version":"2.0","source":"nvd@nist.gov","type":"Primary","score":"5","severity":"","vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","data":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:P/I:N/A:N","baseScore":5,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"NONE","availabilityImpact":"NONE"}}],"references":[{"url":"https://browser.yandex.com/security/changelogs/","name":"https://browser.yandex.com/security/changelogs/","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Release Notes","Vendor Advisory"],"title":"Vulnerability fix history for Yandex Browser","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.securityfocus.com/bid/93921","name":"http://www.securityfocus.com/bid/93921","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory","VDB Entry"],"title":"Yandex Browser CVE-2016-8503 Brute Force Authentication Bypass Vulnerability","mime":"text/html","httpstatus":"200","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2016-8503","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-8503","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Yandex N.V.","product":"Yandex Browser for desktop","version":"affected 16.7 to 16.9 for Windows and OSx.","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2016","cve_id":"8503","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"yandex","cpe5":"yandex_browser","cpe6":"16.7.0.3342","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2016","cve_id":"8503","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"yandex","cpe5":"yandex_browser","cpe6":"16.7.1.20808","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2016","cve_id":"8503","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"yandex","cpe5":"yandex_browser","cpe6":"16.9.1.1131","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2016","cve_id":"8503","cve":"CVE-2016-8503","epss":"0.001940000","percentile":"0.410540000","score_date":"2026-05-09","updated_at":"2026-05-10 00:03:06"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"providerMetadata":{"dateUpdated":"2024-08-06T02:27:39.638Z","orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE"},"references":[{"name":"93921","tags":["vdb-entry","x_refsource_BID","x_transferred"],"url":"http://www.securityfocus.com/bid/93921"},{"tags":["x_refsource_CONFIRM","x_transferred"],"url":"https://browser.yandex.com/security/changelogs/"}],"title":"CVE Program Container"}],"cna":{"affected":[{"product":"Yandex Browser for desktop","vendor":"Yandex N.V.","versions":[{"status":"affected","version":"16.7 to 16.9 for Windows and OSx."}]}],"datePublic":"2016-10-25T00:00:00.000Z","descriptions":[{"lang":"en","value":"Yandex Protect Anti-phishing warning in Yandex Browser for desktop from version 16.7 to 16.9 could be used by remote attacker for brute-forcing passwords from important web-resource with special JavaScript."}],"problemTypes":[{"descriptions":[{"description":"Password brute-force through Yandex Protect Anti-phishing message","lang":"en","type":"text"}]}],"providerMetadata":{"dateUpdated":"2016-11-25T19:57:01.000Z","orgId":"a51c9250-e584-488d-808b-03e6f1386796","shortName":"yandex"},"references":[{"name":"93921","tags":["vdb-entry","x_refsource_BID"],"url":"http://www.securityfocus.com/bid/93921"},{"tags":["x_refsource_CONFIRM"],"url":"https://browser.yandex.com/security/changelogs/"}],"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"browser-security@yandex-team.ru","ID":"CVE-2016-8503","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"Yandex Browser for desktop","version":{"version_data":[{"version_value":"16.7 to 16.9 for Windows and OSx."}]}}]},"vendor_name":"Yandex N.V."}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"Yandex Protect Anti-phishing warning in Yandex Browser for desktop from version 16.7 to 16.9 could be used by remote attacker for brute-forcing passwords from important web-resource with special JavaScript."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"Password brute-force through Yandex Protect Anti-phishing message"}]}]},"references":{"reference_data":[{"name":"93921","refsource":"BID","url":"http://www.securityfocus.com/bid/93921"},{"name":"https://browser.yandex.com/security/changelogs/","refsource":"CONFIRM","url":"https://browser.yandex.com/security/changelogs/"}]}}}},"cveMetadata":{"assignerOrgId":"a51c9250-e584-488d-808b-03e6f1386796","assignerShortName":"yandex","cveId":"CVE-2016-8503","datePublished":"2016-10-26T18:00:00.000Z","dateReserved":"2016-10-07T00:00:00.000Z","dateUpdated":"2024-08-06T02:27:39.638Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.1"},"nvd":{"publishedDate":"2016-10-26 18:59:04","lastModifiedDate":"2026-05-06 22:30:45","problem_types":["CWE-254","Password brute-force through Yandex Protect Anti-phishing message"],"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:L/I:L/A:L","baseScore":7.3,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"LOW"},"exploitabilityScore":3.9,"impactScore":3.4}],"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,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"NONE","availabilityImpact":"NONE"},"baseSeverity":"MEDIUM","exploitabilityScore":10,"impactScore":2.9,"acInsufInfo":true,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:yandex:yandex_browser:16.7.0.3342:*:*:*:*:*:*:*","matchCriteriaId":"B267D322-7F4C-4A0A-8AC1-CC96A4C90581"},{"vulnerable":true,"criteria":"cpe:2.3:a:yandex:yandex_browser:16.7.1.20808:*:*:*:*:*:*:*","matchCriteriaId":"88EC4B52-B839-4BC2-80F7-04888A9E6A87"},{"vulnerable":true,"criteria":"cpe:2.3:a:yandex:yandex_browser:16.9.1.1131:*:*:*:*:*:*:*","matchCriteriaId":"44733D7C-849A-4526-BB32-FD41F8B2ABB6"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2016","CveId":"8503","Ordinal":"1","Title":"CVE-2016-8503","CVE":"CVE-2016-8503","Year":"2016"},"notes":[{"CveYear":"2016","CveId":"8503","Ordinal":"1","NoteData":"Yandex Protect Anti-phishing warning in Yandex Browser for desktop from version 16.7 to 16.9 could be used by remote attacker for brute-forcing passwords from important web-resource with special JavaScript.","Type":"Description","Title":"CVE-2016-8503"},{"CveYear":"2016","CveId":"8503","Ordinal":"2","NoteData":"2016-10-26","Type":"Other","Title":"Published"},{"CveYear":"2016","CveId":"8503","Ordinal":"3","NoteData":"2016-11-25","Type":"Other","Title":"Modified"}]}}}