{"api_version":"1","generated_at":"2026-05-30T20:04:38+00:00","cve":"CVE-2021-38450","urls":{"html":"https://cve.report/CVE-2021-38450","api":"https://cve.report/api/cve/CVE-2021-38450.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-38450","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-38450"},"summary":{"title":"CVE-2021-38450","description":"The affected controllers do not properly sanitize the input containing code syntax. As a result, an attacker could craft code to alter the intended controller flow of the software.","state":"PUBLIC","assigner":"ics-cert@hq.dhs.gov","published_at":"2021-10-27 01:15:00","updated_at":"2023-07-10 19:27:00"},"problem_types":["NVD-CWE-Other"],"metrics":[],"references":[{"url":"https://us-cert.cisa.gov/ics/advisories/icsa-21-266-02","name":"https://us-cert.cisa.gov/ics/advisories/icsa-21-266-02","refsource":"CONFIRM","tags":[],"title":"Trane Tracer | CISA","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-38450","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-38450","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[{"source":"LEGACY","value":"Trane reported this vulnerability to CISA.","lang":""}],"nvd_cpes":[{"cve_year":"2021","cve_id":"38450","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"trane","cpe5":"tracer_concierge","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"38450","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"trane","cpe5":"tracer_concierge","cpe6":"5.5","cpe7":"-","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"38450","vulnerable":"-1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"h","cpe4":"trane","cpe5":"tracer_sc","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"38450","vulnerable":"-1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"h","cpe4":"trane","cpe5":"tracer_sc\\+","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"38450","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"trane","cpe5":"tracer_sc\\+_firmware","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"38450","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"trane","cpe5":"tracer_sc\\+_firmware","cpe6":"5.5","cpe7":"-","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"38450","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"trane","cpe5":"tracer_sc_firmware","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"38450","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"trane","cpe5":"tracer_sc_firmware","cpe6":"4.4","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":"2021-09-27T15:34:00.000Z","ID":"CVE-2021-38450","STATE":"PUBLIC","TITLE":"Trane Tracer Code Injection"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"Tracer SC","version":{"version_data":[{"version_affected":"<","version_name":"All","version_value":"4.4 SP7"}]}},{"product_name":"Tracer SC+","version":{"version_data":[{"version_affected":"<","version_name":"All","version_value":"5.5 SP3"}]}},{"product_name":"Tracer Concierge","version":{"version_data":[{"version_affected":"<","version_name":"All","version_value":"5.5 SP3"}]}}]},"vendor_name":"Trane"}]}},"credit":[{"lang":"eng","value":"Trane reported this vulnerability to CISA."}],"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"The affected controllers do not properly sanitize the input containing code syntax. As a result, an attacker could craft code to alter the intended controller flow of the software."}]},"generator":{"engine":"Vulnogram 0.0.9"},"impact":{"cvss":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.9,"baseSeverity":"CRITICAL","confidentialityImpact":"LOW","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:H","version":"3.1"}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-94 Improper Control of Generation of Code ('Code Injection')"}]}]},"references":{"reference_data":[{"name":"https://us-cert.cisa.gov/ics/advisories/icsa-21-266-02","refsource":"CONFIRM","url":"https://us-cert.cisa.gov/ics/advisories/icsa-21-266-02"}]},"solution":[{"lang":"eng","value":"Affected users should contact a Trane representative to install updated firmware or request additional information. Please reference Trane service database number HUB-205962 when contacting the Trane office.\n\nTracer SC is no longer actively developed, tested, or sold. Tracer SC will be considered end-of-life on December 31, 2022. Trane recommends identifying a migration plan for replacing the Tracer SC controller with the next-generation Tracer SC+ controller. Tracer SC+ can function as a drop-in replacement for Tracer SC, providing significant updates to security capabilities.\n\nTrane has identified the following specific mitigations:\n\nTracer SC: Upgrade to v4.4 SP7 or later\nTracer SC+: Upgrade to v5.5 SP3 or later\nTracer Concierge: Upgrade to v5.5 SP3 or later"}],"source":{"advisory":"https://us-cert.cisa.gov/ics/advisories/icsa-21-266-02","discovery":"UNKNOWN"}},"nvd":{"publishedDate":"2021-10-27 01:15:00","lastModifiedDate":"2023-07-10 19:27:00","problem_types":["NVD-CWE-Other"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","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:L/Au:S/C:P/I:P/A:P","accessVector":"NETWORK","accessComplexity":"LOW","authentication":"SINGLE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL","baseScore":6.5},"severity":"MEDIUM","exploitabilityScore":8,"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:trane:tracer_concierge:*:*:*:*:*:*:*:*","versionEndExcluding":"5.5","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:trane:tracer_concierge:5.5:-:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"AND","children":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:trane:tracer_sc_firmware:*:*:*:*:*:*:*:*","versionEndExcluding":"4.4","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:trane:tracer_sc_firmware:4.4:-:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":false,"cpe23Uri":"cpe:2.3:h:trane:tracer_sc:-:*:*:*:*:*:*:*","cpe_name":[]}]}],"cpe_match":[]},{"operator":"AND","children":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:trane:tracer_sc\\+_firmware:*:*:*:*:*:*:*:*","versionEndExcluding":"5.5","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:trane:tracer_sc\\+_firmware:5.5:-:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":false,"cpe23Uri":"cpe:2.3:h:trane:tracer_sc\\+:-:*:*:*:*:*:*:*","cpe_name":[]}]}],"cpe_match":[]}]}},"legacy_mitre":{"record":{"CveYear":"2021","CveId":"38450","Ordinal":"214112","Title":"CVE-2021-38450","CVE":"CVE-2021-38450","Year":"2021"},"notes":[{"CveYear":"2021","CveId":"38450","Ordinal":"1","NoteData":"The affected controllers do not properly sanitize the input containing code syntax. As a result, an attacker could craft code to alter the intended controller flow of the software.","Type":"Description","Title":null},{"CveYear":"2021","CveId":"38450","Ordinal":"2","NoteData":"2021-10-26","Type":"Other","Title":"Published"},{"CveYear":"2021","CveId":"38450","Ordinal":"3","NoteData":"2021-10-26","Type":"Other","Title":"Modified"}]}}}