{"api_version":"1","generated_at":"2026-06-10T05:04:38+00:00","cve":"CVE-2021-42536","urls":{"html":"https://cve.report/CVE-2021-42536","api":"https://cve.report/api/cve/CVE-2021-42536.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-42536","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-42536"},"summary":{"title":"CVE-2021-42536","description":"The affected product is vulnerable to a disclosure of peer username and password by allowing all users access to read global variables.","state":"PUBLIC","assigner":"ics-cert@hq.dhs.gov","published_at":"2021-10-22 14:15:00","updated_at":"2021-10-27 16:10:00"},"problem_types":["CWE-668"],"metrics":[],"references":[{"url":"https://us-cert.cisa.gov/ics/advisories/icsa-21-278-02","name":"https://us-cert.cisa.gov/ics/advisories/icsa-21-278-02","refsource":"CONFIRM","tags":[],"title":"Emerson WirelessHART Gateway | CISA","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-42536","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-42536","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[{"source":"LEGACY","value":"Amir Preminger of Claroty reported these vulnerabilities to CISA","lang":""}],"nvd_cpes":[{"cve_year":"2021","cve_id":"42536","vulnerable":"-1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"h","cpe4":"emerson","cpe5":"wireless_1410d_gateway","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"42536","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"emerson","cpe5":"wireless_1410d_gateway_firmware","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"42536","vulnerable":"-1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"h","cpe4":"emerson","cpe5":"wireless_1410_gateway","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"42536","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"emerson","cpe5":"wireless_1410_gateway_firmware","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"42536","vulnerable":"-1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"h","cpe4":"emerson","cpe5":"wireless_1420_gateway","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"42536","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"emerson","cpe5":"wireless_1420_gateway_firmware","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"CVE_data_meta":{"ASSIGNER":"ics-cert@hq.dhs.gov","DATE_PUBLIC":"2021-10-05T21:42:00.000Z","ID":"CVE-2021-42536","STATE":"PUBLIC","TITLE":"Emerson WirelessHART Gateway"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"WirelessHART Gateway","version":{"version_data":[{"version_affected":"<=","version_name":"1410","version_value":"4.7.94"},{"version_affected":"<=","version_name":"1410D","version_value":"4.7.94"},{"version_affected":"<=","version_name":"1420","version_value":"4.7.94"}]}}]},"vendor_name":"Emerson"}]}},"credit":[{"lang":"eng","value":"Amir Preminger of Claroty reported these vulnerabilities to CISA"}],"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"The affected product is vulnerable to a disclosure of peer username and password by allowing all users access to read global variables."}]},"generator":{"engine":"Vulnogram 0.0.9"},"impact":{"cvss":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H","version":"3.1"}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-200 Information Exposure"}]}]},"references":{"reference_data":[{"name":"https://us-cert.cisa.gov/ics/advisories/icsa-21-278-02","refsource":"CONFIRM","url":"https://us-cert.cisa.gov/ics/advisories/icsa-21-278-02"}]},"solution":[{"lang":"eng","value":"Emerson recommends upgrading to v4.7.105 to address these vulnerabilities.\n\nUsers can visit the Emerson Gate Firmware site for and download instructions.\n\nIf affected users do not yet have a free Guardian account, please see the updated Emerson Gateway Firmware download process by following the link above and viewing the download guide."}],"source":{"advisory":"https://us-cert.cisa.gov/ics/advisories/icsa-21-278-02","discovery":"UNKNOWN"}},"nvd":{"publishedDate":"2021-10-22 14:15:00","lastModifiedDate":"2021-10-27 16:10:00","problem_types":["CWE-668"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM"},"exploitabilityScore":2.8,"impactScore":3.6},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:L/Au:S/C:P/I:N/A:N","accessVector":"NETWORK","accessComplexity":"LOW","authentication":"SINGLE","confidentialityImpact":"PARTIAL","integrityImpact":"NONE","availabilityImpact":"NONE","baseScore":4},"severity":"MEDIUM","exploitabilityScore":8,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"AND","children":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:emerson:wireless_1410_gateway_firmware:*:*:*:*:*:*:*:*","versionEndExcluding":"4.7.94","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":false,"cpe23Uri":"cpe:2.3:h:emerson:wireless_1410_gateway:*:*:*:*:*:*:*:*","cpe_name":[]}]}],"cpe_match":[]},{"operator":"AND","children":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:emerson:wireless_1410d_gateway_firmware:*:*:*:*:*:*:*:*","versionEndExcluding":"4.7.94","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":false,"cpe23Uri":"cpe:2.3:h:emerson:wireless_1410d_gateway:*:*:*:*:*:*:*:*","cpe_name":[]}]}],"cpe_match":[]},{"operator":"AND","children":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:emerson:wireless_1420_gateway_firmware:*:*:*:*:*:*:*:*","versionEndExcluding":"4.7.94","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":false,"cpe23Uri":"cpe:2.3:h:emerson:wireless_1420_gateway:-:*:*:*:*:*:*:*","cpe_name":[]}]}],"cpe_match":[]}]}},"legacy_mitre":{"record":{"CveYear":"2021","CveId":"42536","Ordinal":"219021","Title":"CVE-2021-42536","CVE":"CVE-2021-42536","Year":"2021"},"notes":[{"CveYear":"2021","CveId":"42536","Ordinal":"1","NoteData":"The affected product is vulnerable to a disclosure of peer username and password by allowing all users access to read global variables.","Type":"Description","Title":null},{"CveYear":"2021","CveId":"42536","Ordinal":"2","NoteData":"2021-10-22","Type":"Other","Title":"Published"},{"CveYear":"2021","CveId":"42536","Ordinal":"3","NoteData":"2021-10-22","Type":"Other","Title":"Modified"}]}}}