{"affected":[{"affectedData":[{"product":"Cybozu Remote Service","vendor":"Cybozu, Inc.","versions":[{"status":"affected","version":"3.1.8"}]}],"source":"vultures@jpcert.or.jp"}],"configurations":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:cybozu:remote_service_manager:3.1.8:*:*:*:*:*:*:*","matchCriteriaId":"B9219597-06C9-4D4C-A5CB-C5B8CDB0C2C8","vulnerable":true}],"negate":false,"operator":"OR"}]}],"cveTags":[],"descriptions":[{"lang":"en","value":"Directory traversal vulnerability in the management screen of Cybozu Remote Service 3.1.8 allows a remote authenticated attacker to upload an arbitrary file via unspecified vectors."},{"lang":"es","value":"Una vulnerabilidad de salto de directorio en la pantalla de administración de Cybozu Remote Service versión 3.1.8, permite a un atacante remoto autenticado cargar un archivo arbitrario por medio de vectores no especificados"}],"id":"CVE-2021-20796","lastModified":"2026-06-17T03:34:27.967","metrics":{"cvssMetricV2":[{"acInsufInfo":false,"baseSeverity":"MEDIUM","cvssData":{"accessComplexity":"LOW","accessVector":"NETWORK","authentication":"SINGLE","availabilityImpact":"NONE","baseScore":4.0,"confidentialityImpact":"NONE","integrityImpact":"PARTIAL","vectorString":"AV:N/AC:L/Au:S/C:N/I:P/A:N","version":"2.0"},"exploitabilityScore":8.0,"impactScore":2.9,"obtainAllPrivilege":false,"obtainOtherPrivilege":false,"obtainUserPrivilege":false,"source":"nvd@nist.gov","type":"Primary","userInteractionRequired":false}],"cvssMetricV31":[{"cvssData":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","version":"3.1"},"exploitabilityScore":2.8,"impactScore":3.6,"source":"nvd@nist.gov","type":"Primary"}]},"published":"2021-10-13T09:15:07.767","references":[{"source":"vultures@jpcert.or.jp","tags":["Third Party Advisory"],"url":"https://jvn.jp/en/jp/JVN52694228/index.html"},{"source":"vultures@jpcert.or.jp","tags":["Vendor Advisory"],"url":"https://kb.cybozu.support/article/37427"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"],"url":"https://jvn.jp/en/jp/JVN52694228/index.html"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"],"url":"https://kb.cybozu.support/article/37427"}],"sourceIdentifier":"vultures@jpcert.or.jp","vulnStatus":"Modified","weaknesses":[{"description":[{"lang":"en","value":"CWE-22"}],"source":"nvd@nist.gov","type":"Primary"}]}