{"api_version":"1","generated_at":"2026-07-24T00:33:21+00:00","cve":"CVE-2021-43206","urls":{"html":"https://cve.report/CVE-2021-43206","api":"https://cve.report/api/cve/CVE-2021-43206.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-43206","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-43206"},"summary":{"title":"CVE-2021-43206","description":"A server-generated error message containing sensitive information in Fortinet FortiOS 7.0.0 through 7.0.3, 6.4.0 through 6.4.8, 6.2.x, 6.0.x and FortiProxy 7.0.0 through 7.0.1, 2.0.x allows malicious webservers to retrieve a web proxy's client username and IP via same origin HTTP requests triggering proxy-generated HTTP status codes pages.","state":"PUBLIC","assigner":"psirt@fortinet.com","published_at":"2022-05-04 16:15:00","updated_at":"2022-05-13 02:49:00"},"problem_types":["CWE-209"],"metrics":[],"references":[{"url":"https://fortiguard.com/psirt/FG-IR-21-231","name":"https://fortiguard.com/psirt/FG-IR-21-231","refsource":"CONFIRM","tags":[],"title":"PSIRT Advisories | FortiGuard","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-43206","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-43206","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2021","cve_id":"43206","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"fortinet","cpe5":"fortios","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"43206","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"fortinet","cpe5":"fortiproxy","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[{"cve":"CVE-2021-43206","qid":"43907","title":"FortiOS Information Disclosure Vulnerability in Web Proxy Error Pages (FG-IR-21-231)"},{"cve":"CVE-2021-43206","qid":"44055","title":"FortiOS Information Disclosure Vulnerability in Web Proxy Error Pages (FG-IR-21-231) (Unauthenticated Check)"}]},"source_records":{"cve_program":{"data_type":"CVE","data_format":"MITRE","data_version":"4.0","CVE_data_meta":{"ID":"CVE-2021-43206","ASSIGNER":"psirt@fortinet.com","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"vendor_name":"Fortinet","product":{"product_data":[{"product_name":"Fortinet FortiOS, FortiProxy","version":{"version_data":[{"version_value":"FortiOS 7.0.3, 7.0.2, 7.0.1, 7.0.0, 6.4.8, 6.4.7, 6.4.6, 6.4.5, 6.4.4, 6.4.3, 6.4.2, 6.4.1, 6.4.0, 6.2.10, 6.2.9, 6.2.8, 6.2.7, 6.2.6, 6.2.5, 6.2.4, 6.2.3, 6.2.2, 6.2.1, 6.2.0, 6.0.14, 6.0.13, 6.0.12, 6.0.11, 6.0.10, 6.0.9, 6.0.8, 6.0.7, 6.0.6, 6.0.5, 6.0.4, 6.0.3, 6.0.2, 6.0.1, 6.0.0, 5.6.14, 5.6.13, 5.6.12, 5.6.11, 5.6.10, 5.6.9, 5.6.8, 5.6.7, 5.6.6, 5.6.5, 5.6.4, 5.6.3, 5.6.2, 5.6.1, 5.6.0; 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When the candidate has been publicized, the details for this candidate will be provided.","Type":"Description","Title":null}]}}}