{"api_version":"1","generated_at":"2026-04-23T09:05:45+00:00","cve":"CVE-2020-7538","urls":{"html":"https://cve.report/CVE-2020-7538","api":"https://cve.report/api/cve/CVE-2020-7538.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2020-7538","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2020-7538"},"summary":{"title":"CVE-2020-7538","description":"A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in PLC Simulator on EcoStruxureª Control Expert (now Unity Pro) (all versions) that could cause a crash of the PLC simulator present in EcoStruxureª Control Expert software when receiving a specially crafted request over Modbus.","state":"PUBLIC","assigner":"cybersecurity@schneider-electric.com","published_at":"2020-11-19 22:15:00","updated_at":"2022-01-31 19:33:00"},"problem_types":["CWE-754"],"metrics":[],"references":[{"url":"https://www.se.com/ww/en/download/document/SEVD-2020-315-07/","name":"https://www.se.com/ww/en/download/document/SEVD-2020-315-07/","refsource":"MISC","tags":["Patch","Vendor Advisory"],"title":"Security Notification - PLC Simulator on EcoStruxure™ Control Expert (2.0) | Schneider Electric","mime":"text/html","httpstatus":"200","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-7538","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-7538","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2020","cve_id":"7538","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"schneider-electric","cpe5":"ecostruxure_control_expert","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"7538","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"se","cpe5":"ecostruxure_control_expert","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"7538","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"se","cpe5":"ecostruxure_control_expert","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[{"cve":"CVE-2020-7538","qid":"590719","title":"Schneider Electric PLC Simulator on EcoStruxure Control Expert and Process Expert Multiple Vulnerabilities (SEVD-2020-315-07)"}]},"source_records":{"cve_program":{"data_type":"CVE","data_format":"MITRE","data_version":"4.0","CVE_data_meta":{"ID":"CVE-2020-7538","ASSIGNER":"cybersecurity@schneider-electric.com","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"vendor_name":"n/a","product":{"product_data":[{"product_name":"PLC Simulator on EcoStruxureª Control Expert (now Unity Pro) (all versions) ","version":{"version_data":[{"version_value":"PLC Simulator on EcoStruxureª Control Expert (now Unity Pro) (all versions)"}]}}]}}]}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-754: Improper Check for Unusual or Exceptional Conditions"}]}]},"references":{"reference_data":[{"refsource":"MISC","name":"https://www.se.com/ww/en/download/document/SEVD-2020-315-07/","url":"https://www.se.com/ww/en/download/document/SEVD-2020-315-07/"}]},"description":{"description_data":[{"lang":"eng","value":"A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in PLC Simulator on EcoStruxureª Control Expert (now Unity Pro) (all versions) that could cause a crash of the PLC simulator present in EcoStruxureª Control Expert software when receiving a specially crafted request over Modbus."}]}},"nvd":{"publishedDate":"2020-11-19 22:15:00","lastModifiedDate":"2022-01-31 19:33:00","problem_types":["CWE-754"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:N/I:N/A:P","accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL","baseScore":5},"severity":"MEDIUM","exploitabilityScore":10,"impactScore":2.9,"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:schneider-electric:ecostruxure_control_expert:*:*:*:*:*:*:*:*","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2020","CveId":"7538","Ordinal":"167817","Title":"CVE-2020-7538","CVE":"CVE-2020-7538","Year":"2020"},"notes":[{"CveYear":"2020","CveId":"7538","Ordinal":"1","NoteData":"A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in PLC Simulator on EcoStruxureª Control Expert (now Unity Pro) (all versions) that could cause a crash of the PLC simulator present in EcoStruxureª Control Expert software when receiving a specially crafted request over Modbus.","Type":"Description","Title":null},{"CveYear":"2020","CveId":"7538","Ordinal":"2","NoteData":"2020-11-19","Type":"Other","Title":"Published"},{"CveYear":"2020","CveId":"7538","Ordinal":"3","NoteData":"2020-11-19","Type":"Other","Title":"Modified"}]}}}