{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-22T04:08:14.449","vulnerabilities":[{"cve":{"id":"CVE-2021-28495","sourceIdentifier":"psirt@arista.com","published":"2021-09-09T13:15:09.103","lastModified":"2024-11-21T05:59:46.757","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"In Arista's MOS (Metamako Operating System) software which is supported on the 7130 product line, under certain conditions, user authentication can be bypassed when API access is enabled via the JSON-RPC APIs. This issue affects: Arista Metamako Operating System All releases in the MOS-0.1x train MOS-0.13 and post releases in the MOS-0.1x train MOS-0.26.6 and below releases in the MOS-0.2x train MOS-0.31.1 and below releases in the MOS-0.3x train"},{"lang":"es","value":"En el software MOS (Sistema Operativo Metamako) de Arista, que es compatible con la línea de productos 7130, en determinadas condiciones, la autenticación del usuario puede omitirse cuando se habilita el acceso a la API por medio de las API JSON-RPC. Este problema afecta a: Sistema Operativo Arista Metamako Todas las versiones MOS-0.1x train MOS-0.13 y posteriores en MOS-0.1x train MOS-0.26.6 y posteriores en MOS-0.2x train MOS-0.31.1 y posteriores en MOS-0.3x train"}],"metrics":{"cvssMetricV31":[{"source":"psirt@arista.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L","baseScore":7.2,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"LOW"},"exploitabilityScore":3.9,"impactScore":2.7},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":9.8,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":5.9}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:M/Au:N/C:P/I:P/A:P","baseScore":6.8,"accessVector":"NETWORK","accessComplexity":"MEDIUM","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL"},"baseSeverity":"MEDIUM","exploitabilityScore":8.6,"impactScore":6.4,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"weaknesses":[{"source":"psirt@arista.com","type":"Secondary","description":[{"lang":"en","value":"CWE-287"}]},{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-287"}]}],"configurations":[{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:arista:metamako_operating_system:*:*:*:*:*:*:*:*","versionStartIncluding":"0.10.0","versionEndIncluding":"0.13.0","matchCriteriaId":"6B89974C-FC70-4BA1-B700-2F0E1A448939"},{"vulnerable":true,"criteria":"cpe:2.3:o:arista:metamako_operating_system:*:*:*:*:*:*:*:*","versionStartIncluding":"0.20.0","versionEndIncluding":"0.26.7","matchCriteriaId":"A83336C6-BEDD-4A4B-8A4D-D230274BC9BC"},{"vulnerable":true,"criteria":"cpe:2.3:o:arista:metamako_operating_system:*:*:*:*:*:*:*:*","versionStartIncluding":"0.30.0","versionEndExcluding":"0.32.0","matchCriteriaId":"679CE6C2-27E1-4C2C-BF0C-51B158870F6B"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:arista:7130:-:*:*:*:*:*:*:*","matchCriteriaId":"4D832798-DA45-4F9E-AA31-5D088253A28A"}]}]}],"references":[{"url":"https://www.arista.com/en/support/advisories-notices/security-advisories/12914-security-advisory-66","source":"psirt@arista.com","tags":["Mitigation","Vendor Advisory"]},{"url":"https://www.arista.com/en/support/advisories-notices/security-advisories/12914-security-advisory-66","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Mitigation","Vendor Advisory"]}]}}]}