{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-06-10T18:28:41.885","vulnerabilities":[{"cve":{"id":"CVE-2021-27707","sourceIdentifier":"cve@mitre.org","published":"2021-04-14T15:15:14.440","lastModified":"2024-11-21T05:58:27.853","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"Buffer Overflow in Tenda G1 and G3 routers with firmware v15.11.0.17(9502)_CN allows remote attackers to execute arbitrary code via a crafted action/\"portMappingIndex \"request. This occurs because the \"formDelPortMapping\" function directly passes the parameter \"portMappingIndex\" to strcpy without limit."},{"lang":"es","value":"Un desbordamiento de búfer en los enrutadores Tenda versiones G1 y G3 con firmware v15.11.0.17(9502) _CN, permite a atacantes remotos ejecutar código arbitrario por medio de una petición diseñada action/\"portMappingIndex\". Esto ocurre porque la función \"formDelPortMapping\" pasa directamente el parámetro \"portMappingIndex\" a strcpy sin límite"}],"metrics":{"cvssMetricV31":[{"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:L/Au:N/C:P/I:P/A:P","baseScore":7.5,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL"},"baseSeverity":"HIGH","exploitabilityScore":10.0,"impactScore":6.4,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-120"}]}],"configurations":[{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:tenda:g1_firmware:v15.11.0.17\\(9502\\)_cn:*:*:*:*:*:*:*","matchCriteriaId":"98669DBF-D56B-4E2D-9A12-813CEC185170"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:tenda:g1:-:*:*:*:*:*:*:*","matchCriteriaId":"FD313047-8A0F-44BD-A75B-F4CF2F4DD8F6"}]}]},{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:tenda:g3_firmware:v15.11.0.17\\(9502\\)_cn:*:*:*:*:*:*:*","matchCriteriaId":"01254E20-AFFD-4A1A-A956-36BFD85017D4"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:tenda:g3:-:*:*:*:*:*:*:*","matchCriteriaId":"7A1B3B7C-2164-40B6-959A-188796737C16"}]}]}],"references":[{"url":"https://hackmd.io/U7OVgYIuRcOKV7SW5-euHw","source":"cve@mitre.org","tags":["Exploit","Third Party Advisory"]},{"url":"https://hackmd.io/U7OVgYIuRcOKV7SW5-euHw","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit","Third Party Advisory"]}]}}]}