{"api_version":"1","generated_at":"2026-07-24T02:24:55+00:00","cve":"CVE-2021-43066","urls":{"html":"https://cve.report/CVE-2021-43066","api":"https://cve.report/api/cve/CVE-2021-43066.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-43066","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-43066"},"summary":{"title":"CVE-2021-43066","description":"A external control of file name or path in Fortinet FortiClientWindows version 7.0.2 and below, version 6.4.6 and below, version 6.2.9 and below, version 6.0.10 and below allows attacker to escalate privilege via the MSI installer.","state":"PUBLIC","assigner":"psirt@fortinet.com","published_at":"2022-05-11 16:15:00","updated_at":"2022-07-12 17:42:00"},"problem_types":["CWE-668"],"metrics":[],"references":[{"url":"https://fortiguard.com/advisory/FG-IR-21-154","name":"https://fortiguard.com/advisory/FG-IR-21-154","refsource":"CONFIRM","tags":[],"title":"PSIRT Advisories | FortiGuard","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-43066","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-43066","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2021","cve_id":"43066","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"fortinet","cpe5":"forticlient","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"windows","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[{"cve":"CVE-2021-43066","qid":"376600","title":"Forticlient Windows Privilege Escalation Vulnerability (FG-IR-21-154)"}]},"source_records":{"cve_program":{"data_type":"CVE","data_format":"MITRE","data_version":"4.0","CVE_data_meta":{"ID":"CVE-2021-43066","ASSIGNER":"psirt@fortinet.com","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"vendor_name":"Fortinet","product":{"product_data":[{"product_name":"Fortinet FortiClientWindows","version":{"version_data":[{"version_value":"FortiClientWindows 7.0.2 7.0.1, 7.0.0, 6.4.6, 6.4.5, 6.4.4, 6.4.3, 6.4.2, 6.4.1, 6.4.0, 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, 6.0.10, 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"}]}}]}}]}},"impact":{"cvss":{"attackComplexity":"Low","attackVector":"Local","availabilityImpact":"High","baseScore":8.4,"baseSeverity":"High","confidentialityImpact":"None","integrityImpact":"High","privilegesRequired":"Low","scope":"Changed","userInteraction":"None","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H/E:H/RL:U/RC:C","version":"3.1"}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"Escalation of privilege"}]}]},"references":{"reference_data":[{"refsource":"CONFIRM","name":"https://fortiguard.com/advisory/FG-IR-21-154","url":"https://fortiguard.com/advisory/FG-IR-21-154"}]},"description":{"description_data":[{"lang":"eng","value":"A external control of file name or path in Fortinet FortiClientWindows version 7.0.2 and below, version 6.4.6 and below, version 6.2.9 and below, version 6.0.10 and below allows attacker to escalate privilege via the MSI installer."}]}},"nvd":{"publishedDate":"2022-05-11 16:15:00","lastModifiedDate":"2022-07-12 17:42:00","problem_types":["CWE-668"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseScore":7.8,"baseSeverity":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:L/AC:L/Au:N/C:P/I:P/A:P","accessVector":"LOCAL","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL","baseScore":4.6},"severity":"MEDIUM","exploitabilityScore":3.9,"impactScore":6.4,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:fortinet:forticlient:*:*:*:*:*:windows:*:*","versionStartIncluding":"7.0.0","versionEndExcluding":"7.0.3","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:fortinet:forticlient:*:*:*:*:*:windows:*:*","versionStartIncluding":"6.0.0","versionEndExcluding":"6.4.7","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2021","CveId":"43066","Ordinal":"219606","Title":"CVE-2021-43066","CVE":"CVE-2021-43066","Year":"2021"},"notes":[{"CveYear":"2021","CveId":"43066","Ordinal":"1","NoteData":"** RESERVED ** This candidate has been reserved by an organization or individual that will use it when announcing a new security problem. When the candidate has been publicized, the details for this candidate will be provided.","Type":"Description","Title":null}]}}}