{"api_version":"1","generated_at":"2026-05-13T11:01:13+00:00","cve":"CVE-2021-23157","urls":{"html":"https://cve.report/CVE-2021-23157","api":"https://cve.report/api/cve/CVE-2021-23157.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-23157","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-23157"},"summary":{"title":"CVE-2021-23157","description":"WECON LeviStudioU Versions 2019-09-21 and prior are vulnerable to a heap-based buffer overflow, which may allow an attacker to remotely execute code.","state":"PUBLIC","assigner":"ics-cert@hq.dhs.gov","published_at":"2022-01-14 20:15:00","updated_at":"2022-02-09 20:50:00"},"problem_types":["CWE-787"],"metrics":[],"references":[{"url":"https://www.zerodayinitiative.com/advisories/ZDI-22-130/","name":"https://www.zerodayinitiative.com/advisories/ZDI-22-130/","refsource":"MISC","tags":[],"title":"ZDI-22-130 | Zero Day Initiative","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.cisa.gov/uscert/ics/advisories/icsa-21-355-03","name":"https://www.cisa.gov/uscert/ics/advisories/icsa-21-355-03","refsource":"MISC","tags":[],"title":"WECON LeviStudioU | CISA","mime":"text/html","httpstatus":"200","archivestatus":"503"},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-22-132/","name":"https://www.zerodayinitiative.com/advisories/ZDI-22-132/","refsource":"MISC","tags":[],"title":"ZDI-22-132 | Zero Day Initiative","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-23157","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-23157","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[{"source":"LEGACY","value":"Natnael Samson (@NattiSamson), working with Trend Micro’s Zero Day Initiative, reported these vulnerabilities to CISA.","lang":""}],"nvd_cpes":[{"cve_year":"2021","cve_id":"23157","vulnerable":"1","versionEndIncluding":"2019-09-21","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"we-con","cpe5":"levistudiou","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":"2021-12-21T19:09:00.000Z","ID":"CVE-2021-23157","STATE":"PUBLIC","TITLE":"WECON LeviStudioU"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"LeviStudioU","version":{"version_data":[{"version_affected":"<=","version_name":"All","version_value":"2019-09-21"}]}}]},"vendor_name":"WECON"}]}},"credit":[{"lang":"eng","value":"Natnael Samson (@NattiSamson), working with Trend Micro’s Zero Day Initiative, reported these vulnerabilities to CISA."}],"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"WECON LeviStudioU Versions 2019-09-21 and prior are vulnerable to a heap-based buffer overflow, which may allow an attacker to remotely execute code."}]},"generator":{"engine":"Vulnogram 0.0.9"},"impact":{"cvss":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":7.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-122 Heap-based Buffer Overflow"}]}]},"references":{"reference_data":[{"refsource":"MISC","url":"https://www.cisa.gov/uscert/ics/advisories/icsa-21-355-03","name":"https://www.cisa.gov/uscert/ics/advisories/icsa-21-355-03"},{"refsource":"MISC","name":"https://www.zerodayinitiative.com/advisories/ZDI-22-130/","url":"https://www.zerodayinitiative.com/advisories/ZDI-22-130/"},{"refsource":"MISC","name":"https://www.zerodayinitiative.com/advisories/ZDI-22-132/","url":"https://www.zerodayinitiative.com/advisories/ZDI-22-132/"}]},"source":{"advisory":"ICSA-21-355-03","discovery":"UNKNOWN"},"work_around":[{"lang":"eng","value":"WECON has not responded to requests to work with CISA to mitigate these vulnerabilities. Users of this affected product are invited to contact WECON technical support for additional information."}]},"nvd":{"publishedDate":"2022-01-14 20:15:00","lastModifiedDate":"2022-02-09 20:50:00","problem_types":["CWE-787"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseScore":7.8,"baseSeverity":"HIGH"},"exploitabilityScore":1.8,"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:we-con:levistudiou:*:*:*:*:*:*:*:*","versionEndIncluding":"2019-09-21","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2021","CveId":"23157","Ordinal":"223127","Title":"CVE-2021-23157","CVE":"CVE-2021-23157","Year":"2021"},"notes":[{"CveYear":"2021","CveId":"23157","Ordinal":"1","NoteData":"WECON LeviStudioU Versions 2019-09-21 and prior are vulnerable to a heap-based buffer overflow, which may allow an attacker to remotely execute code.","Type":"Description","Title":null},{"CveYear":"2021","CveId":"23157","Ordinal":"2","NoteData":"2022-01-14","Type":"Other","Title":"Published"},{"CveYear":"2021","CveId":"23157","Ordinal":"3","NoteData":"2022-01-27","Type":"Other","Title":"Modified"}]}}}