{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-06-16T06:37:06.777","vulnerabilities":[{"cve":{"id":"CVE-2021-20132","sourceIdentifier":"vulnreport@tenable.com","published":"2021-12-30T22:15:07.863","lastModified":"2024-11-21T05:45:59.093","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"Quagga Services on D-Link DIR-2640 less than or equal to version 1.11B02 use default hard-coded credentials, which can allow a remote attacker to gain administrative access to the zebra or ripd those services. Both are running with root privileges on the router (i.e., as the \"admin\" user, UID 0)."},{"lang":"es","value":"Los servicios de Quagga en el D-Link DIR-2640 menores o iguales a versión 1.11B02, usan credenciales predeterminadas embebidas, que pueden permitir a un atacante remoto conseguir acceso administrativo a zebra o al ripd de esos servicios. Ambos son ejecutados con privilegios de root en el router (es decir, como el usuario \"admin\", UID 0)."}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":8.8,"baseSeverity":"HIGH","attackVector":"ADJACENT_NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":2.8,"impactScore":5.9}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:A/AC:L/Au:N/C:C/I:C/A:C","baseScore":8.3,"accessVector":"ADJACENT_NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"COMPLETE","integrityImpact":"COMPLETE","availabilityImpact":"COMPLETE"},"baseSeverity":"HIGH","exploitabilityScore":6.5,"impactScore":10.0,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-798"}]}],"configurations":[{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:dlink:dir-2640-us_firmware:*:*:*:*:*:*:*:*","versionEndIncluding":"1.11b02","matchCriteriaId":"ACE0B76E-0581-4A2B-92D2-A1D7A93B098E"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:dlink:dir-2640-us:-:*:*:*:*:*:*:*","matchCriteriaId":"894C2BD1-B610-4F15-864E-92D6B515488D"}]}]}],"references":[{"url":"https://www.tenable.com/security/research/tra-2021-44","source":"vulnreport@tenable.com","tags":["Exploit","Third Party Advisory"]},{"url":"https://www.tenable.com/security/research/tra-2021-44","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit","Third Party Advisory"]}]}}]}