{"api_version":"1","generated_at":"2026-04-23T12:34:11+00:00","cve":"CVE-2021-32943","urls":{"html":"https://cve.report/CVE-2021-32943","api":"https://cve.report/api/cve/CVE-2021-32943.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-32943","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-32943"},"summary":{"title":"CVE-2021-32943","description":"The affected product is vulnerable to a stack-based buffer overflow, which may allow an attacker to remotely execute arbitrary code on the WebAccess/SCADA (WebAccess/SCADA versions prior to 8.4.5, WebAccess/SCADA versions prior to 9.0.1).","state":"PUBLIC","assigner":"ics-cert@hq.dhs.gov","published_at":"2021-08-10 15:15:00","updated_at":"2021-08-17 18:42:00"},"problem_types":["CWE-787"],"metrics":[],"references":[{"url":"https://us-cert.cisa.gov/ics/advisories/icsa-21-217-04","name":"https://us-cert.cisa.gov/ics/advisories/icsa-21-217-04","refsource":"MISC","tags":[],"title":"Advantech WebAccess SCADA | CISA","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-32943","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-32943","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2021","cve_id":"32943","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"advantech","cpe5":"webaccess\\/scada","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[{"cve":"CVE-2021-32943","qid":"590523","title":"Advantech WebAccess Supervisory control and data acquisition (SCADA) Multiple Vulnerabilities (ICSA-21-217-04)"}]},"source_records":{"cve_program":{"data_type":"CVE","data_format":"MITRE","data_version":"4.0","CVE_data_meta":{"ID":"CVE-2021-32943","ASSIGNER":"ics-cert@hq.dhs.gov","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"vendor_name":"n/a","product":{"product_data":[{"product_name":"WebAccess/SCADA","version":{"version_data":[{"version_value":"WebAccess/SCADA versions prior to 8.4.5, WebAccess/SCADA versions prior to 9.0.1"}]}}]}}]}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"STACK-BASED BUFFER OVERFLOW CWE-121"}]}]},"references":{"reference_data":[{"refsource":"MISC","name":"https://us-cert.cisa.gov/ics/advisories/icsa-21-217-04","url":"https://us-cert.cisa.gov/ics/advisories/icsa-21-217-04"}]},"description":{"description_data":[{"lang":"eng","value":"The affected product is vulnerable to a stack-based buffer overflow, which may allow an attacker to remotely execute arbitrary code on the WebAccess/SCADA (WebAccess/SCADA versions prior to 8.4.5, WebAccess/SCADA versions prior to 9.0.1)."}]}},"nvd":{"publishedDate":"2021-08-10 15:15:00","lastModifiedDate":"2021-08-17 18:42:00","problem_types":["CWE-787"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL"},"exploitabilityScore":3.9,"impactScore":5.9},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:P/I:P/A:P","accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL","baseScore":7.5},"severity":"HIGH","exploitabilityScore":10,"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:advantech:webaccess\\/scada:*:*:*:*:*:*:*:*","versionStartIncluding":"9.0","versionEndExcluding":"9.0.1","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:advantech:webaccess\\/scada:*:*:*:*:*:*:*:*","versionEndExcluding":"8.4.5","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2021","CveId":"32943","Ordinal":"208333","Title":"CVE-2021-32943","CVE":"CVE-2021-32943","Year":"2021"},"notes":[{"CveYear":"2021","CveId":"32943","Ordinal":"1","NoteData":"The affected product is vulnerable to a stack-based buffer overflow, which may allow an attacker to remotely execute arbitrary code on the WebAccess/SCADA (WebAccess/SCADA versions prior to 8.4.5, WebAccess/SCADA versions prior to 9.0.1).","Type":"Description","Title":null},{"CveYear":"2021","CveId":"32943","Ordinal":"2","NoteData":"2021-08-10","Type":"Other","Title":"Published"},{"CveYear":"2021","CveId":"32943","Ordinal":"3","NoteData":"2021-08-10","Type":"Other","Title":"Modified"}]}}}