{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:netgear:wc7500_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "457896CF-BF39-42F9-93B4-3B98B043D56A", "versionEndExcluding": "6.5.3.9", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:netgear:wc7500:-:*:*:*:*:*:*:*", "matchCriteriaId": "EB22B065-8EC8-4DA7-984A-CCB6919AF8F3", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:netgear:wc7520_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "C28CDB2B-9E25-40A5-AE57-39954BD8EC4F", "versionEndExcluding": "6.5.3.9", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:netgear:wc7520:-:*:*:*:*:*:*:*", "matchCriteriaId": "A58C9FE8-4BD5-41F9-9714-2D8083A51D98", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:netgear:wc7600_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "ACC819C7-3CAE-4C52-96CD-B9F8E0DCD816", "versionEndExcluding": "6.5.3.9", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:netgear:wc7600:v1:*:*:*:*:*:*:*", "matchCriteriaId": "1DE67DAE-CB9A-497B-8B23-94E1DE93329B", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:netgear:wc7600_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "ACC819C7-3CAE-4C52-96CD-B9F8E0DCD816", "versionEndExcluding": "6.5.3.9", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:netgear:wc7600:v2:*:*:*:*:*:*:*", "matchCriteriaId": "10DD5BCE-4C6F-4524-94C0-9779E897BFB6", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects WC7500 before 6.5.3.9, WC7520 before 6.5.3.9, WC7600v1 before 6.5.3.9, and WC7600v2 before 6.5.3.9."}, {"lang": "es", "value": "Determinados dispositivos NETGEAR est\u00e1n afectados por una inyecci\u00f3n de comandos por parte de un atacante no autenticado. Esto afecta a WC7500 versiones anteriores a 6.5.3.9, WC7520 versiones anteriores a 6.5.3.9, WC7600v1 versiones anteriores a 6.5.3.9 y WC7600v2 versiones anteriores a 6.5.3.9."}], "id": "CVE-2018-21123", "lastModified": "2026-06-17T01:54:10.957", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "ADJACENT_NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.8, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:A/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 6.5, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.0"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "cve@mitre.org", "type": "Secondary"}], "cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-04-22T16:15:12.420", "references": [{"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "https://kb.netgear.com/000060235/Security-Advisory-for-Pre-Authentication-Command-Injection-on-Some-Wireless-Controllers-PSV-2018-0230"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://kb.netgear.com/000060235/Security-Advisory-for-Pre-Authentication-Command-Injection-on-Some-Wireless-Controllers-PSV-2018-0230"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-74"}], "source": "nvd@nist.gov", "type": "Primary"}]}