CVE-2021-20158

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{"affected": [{"affectedData": [{"product": "Trendnet AC2600 TEW-827DRU", "vendor": "n/a", "versions": [{"status": "affected", "version": "2.08B01"}]}], "source": "vulnreport@tenable.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:trendnet:tew-827dru_firmware:2.08b01:*:*:*:*:*:*:*", "matchCriteriaId": "9C008C1E-18D3-4A0C-97A1-89009310C55B", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:trendnet:tew-827dru:2.0:*:*:*:*:*:*:*", "matchCriteriaId": "FA6A79A7-46A7-446F-B512-4C75B5C214CE", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Trendnet AC2600 TEW-827DRU version 2.08B01 contains an authentication bypass vulnerability. It is possible for an unauthenticated, malicous actor to force the change of the admin password due to a hidden administrative command."}, {"lang": "es", "value": "Trendnet AC2600 TEW-827DRU versi\u00f3n 2.08B01, contiene una vulnerabilidad de omisi\u00f3n de autenticaci\u00f3n. Es posible que un actor malicioso no autenticado fuerce el cambio de la contrase\u00f1a de administrador debido a un comando administrativo oculto.\n"}], "id": "CVE-2021-20158", "lastModified": "2026-06-17T03:33:22.267", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 7.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-12-30T22:15:08.990", "references": [{"source": "vulnreport@tenable.com", "tags": ["Third Party Advisory"], "url": "https://www.tenable.com/security/research/tra-2021-54"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://www.tenable.com/security/research/tra-2021-54"}], "sourceIdentifier": "vulnreport@tenable.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-306"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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