{"id":"CVE-2021-4029","state":"PUBLISHED","title":"A command injection vulnerability in the CGI program of the Zyxel ARMOR Z1/Z2 firmware could allow an attacker to execute arbitrary OS commands via a LAN interface.","description":"A command injection vulnerability in the CGI program of the Zyxel ARMOR Z1/Z2 firmware could allow an attacker to execute arbitrary OS commands via a LAN interface.","publishedAt":"2022-02-22T14:25:14.000Z","updatedAt":"2024-08-03T17:16:03.566Z","severity":{"score":8.8,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","source":"Zyxel"},"assigner":"Zyxel","products":["Zyxel ARMOR Z2 (NBG6817) firmware","Zyxel ARMOR Z1 (NBG6816) firmware"],"affected":[{"vendor":"Zyxel","product":"ARMOR Z2 (NBG6817) firmware","versions":[{"version":"1.00(ABCS.10)C0","status":"affected"}]},{"vendor":"Zyxel","product":"ARMOR Z1 (NBG6816) firmware","versions":[{"version":"1.00(AAWB.10)C0","status":"affected"}]}],"references":["https://www.zyxel.com/support/forgery-vulnerabilities-of-select-Armor-home-routers.shtml"],"weaknesses":["CWE-78"],"ingestedAt":"2026-10-29T19:49:23.890Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/4xxx/CVE-2021-4029.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-4029","state":"PUBLISHED","datePublished":"2022-02-22T14:25:14.000Z","dateUpdated":"2024-08-03T17:16:03.566Z","assignerShortName":"Zyxel","assignerOrgId":"96e50032-ad0d-4058-a115-4d2c13821f9f","dateReserved":"2021-11-29T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"A command injection vulnerability in the CGI program of the Zyxel ARMOR Z1/Z2 firmware could allow an attacker to execute arbitrary OS commands via a LAN interface."}],"affected":[{"vendor":"Zyxel","product":"ARMOR Z2 (NBG6817) firmware","versions":[{"version":"1.00(ABCS.10)C0","status":"affected"}]},{"vendor":"Zyxel","product":"ARMOR Z1 (NBG6816) firmware","versions":[{"version":"1.00(AAWB.10)C0","status":"affected"}]}],"references":[{"url":"https://www.zyxel.com/support/forgery-vulnerabilities-of-select-Armor-home-routers.shtml","tags":["x_refsource_CONFIRM"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"ADJACENT_NETWORK","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-78","description":"CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"Zyxel","dateUpdated":"2022-02-22T14:25:14.000Z","orgId":"96e50032-ad0d-4058-a115-4d2c13821f9f"},"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"security@zyxel.com.tw","ID":"CVE-2021-4029","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"ARMOR Z2 (NBG6817) firmware","version":{"version_data":[{"version_value":"1.00(ABCS.10)C0"}]}},{"product_name":"ARMOR Z1 (NBG6816) firmware","version":{"version_data":[{"version_value":"1.00(AAWB.10)C0"}]}}]},"vendor_name":"Zyxel"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"A command injection vulnerability in the CGI program of the Zyxel ARMOR Z1/Z2 firmware could allow an attacker to execute arbitrary OS commands via a LAN interface."}]},"impact":{"cvss":{"baseScore":"8.8","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')"}]}]},"references":{"reference_data":[{"name":"https://www.zyxel.com/support/forgery-vulnerabilities-of-select-Armor-home-routers.shtml","refsource":"CONFIRM","url":"https://www.zyxel.com/support/forgery-vulnerabilities-of-select-Armor-home-routers.shtml"}]}}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://www.zyxel.com/support/forgery-vulnerabilities-of-select-Armor-home-routers.shtml","tags":["x_refsource_CONFIRM","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-03T17:16:03.566Z"}}]}}}