{"api_version":"1","generated_at":"2026-04-24T07:04:26+00:00","cve":"CVE-2021-21822","urls":{"html":"https://cve.report/CVE-2021-21822","api":"https://cve.report/api/cve/CVE-2021-21822.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-21822","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-21822"},"summary":{"title":"CVE-2021-21822","description":"A use-after-free vulnerability exists in the JavaScript engine of Foxit Software’s PDF Reader, version 10.1.3.37598. A specially crafted PDF document can trigger the reuse of previously free memory, which can lead to arbitrary code execution. An attacker needs to trick the user into opening a malicious file or site to trigger this vulnerability if the browser plugin extension is enabled.","state":"PUBLIC","assigner":"talos-cna@cisco.com","published_at":"2021-05-10 16:15:00","updated_at":"2022-07-21 10:53:00"},"problem_types":["CWE-416"],"metrics":[],"references":[{"url":"https://talosintelligence.com/vulnerability_reports/TALOS-2021-1287","name":"https://talosintelligence.com/vulnerability_reports/TALOS-2021-1287","refsource":"MISC","tags":[],"title":"TALOS-2021-1287 ||  Cisco Talos Intelligence Group - Comprehensive Threat Intelligence","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-21822","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21822","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2021","cve_id":"21822","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"foxitsoftware","cpe5":"foxit_reader","cpe6":"10.1.3.37598","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[{"cve":"CVE-2021-21822","qid":"375563","title":"Foxit Reader and Foxit PhantomPDF Multiple Vulnerabilities"}]},"source_records":{"cve_program":{"data_type":"CVE","data_format":"MITRE","data_version":"4.0","CVE_data_meta":{"ID":"CVE-2021-21822","ASSIGNER":"talos-cna@cisco.com","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"vendor_name":"n/a","product":{"product_data":[{"product_name":"Foxit","version":{"version_data":[{"version_value":"Foxit Reader 10.1.3.37598"}]}}]}}]}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-416: Use After Free"}]}]},"references":{"reference_data":[{"refsource":"MISC","name":"https://talosintelligence.com/vulnerability_reports/TALOS-2021-1287","url":"https://talosintelligence.com/vulnerability_reports/TALOS-2021-1287"}]},"description":{"description_data":[{"lang":"eng","value":"A use-after-free vulnerability exists in the JavaScript engine of Foxit Software’s PDF Reader, version 10.1.3.37598. A specially crafted PDF document can trigger the reuse of previously free memory, which can lead to arbitrary code execution. An attacker needs to trick the user into opening a malicious file or site to trigger this vulnerability if the browser plugin extension is enabled."}]},"impact":{"cvss":{"baseScore":8.8,"baseSeverity":"High","vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.0"}}},"nvd":{"publishedDate":"2021-05-10 16:15:00","lastModifiedDate":"2022-07-21 10:53:00","problem_types":["CWE-416"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH"},"exploitabilityScore":2.8,"impactScore":5.9},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:M/Au:N/C:P/I:P/A:P","accessVector":"NETWORK","accessComplexity":"MEDIUM","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL","baseScore":6.8},"severity":"MEDIUM","exploitabilityScore":8.6,"impactScore":6.4,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":true}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:foxitsoftware:foxit_reader:10.1.3.37598:*:*:*:*:*:*:*","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2021","CveId":"21822","Ordinal":"196511","Title":"CVE-2021-21822","CVE":"CVE-2021-21822","Year":"2021"},"notes":[{"CveYear":"2021","CveId":"21822","Ordinal":"1","NoteData":"A use-after-free vulnerability exists in the JavaScript engine of Foxit Software’s PDF Reader, version 10.1.3.37598. A specially crafted PDF document can trigger the reuse of previously free memory, which can lead to arbitrary code execution. An attacker needs to trick the user into opening a malicious file or site to trigger this vulnerability if the browser plugin extension is enabled.","Type":"Description","Title":null},{"CveYear":"2021","CveId":"21822","Ordinal":"2","NoteData":"2021-05-10","Type":"Other","Title":"Published"},{"CveYear":"2021","CveId":"21822","Ordinal":"3","NoteData":"2021-05-10","Type":"Other","Title":"Modified"}]}}}