{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-29T18:16:31.863","vulnerabilities":[{"cve":{"id":"CVE-2021-1309","sourceIdentifier":"psirt@cisco.com","published":"2021-04-08T04:15:12.063","lastModified":"2024-11-21T05:44:03.693","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"Multiple vulnerabilities exist in the Link Layer Discovery Protocol (LLDP) implementation for Cisco Small Business RV Series Routers. An unauthenticated, adjacent attacker could execute arbitrary code or cause an affected router to leak system memory or reload. A memory leak or device reload would cause a denial of service (DoS) condition on an affected device. For more information about these vulnerabilities, see the Details section of this advisory. Note: LLDP is a Layer 2 protocol. To exploit these vulnerabilities, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent)."},{"lang":"es","value":"Múltiples vulnerabilidades en la implementación del Link Layer Discovery Protocol (LLDP) para Enrutadores Cisco Small Business RV Series. Un atacante adyacente no autenticado podría ejecutar código arbitrario o causar que un enrutador afectado filtre la memoria del sistema o se recargue. Una pérdida de memoria o una recarga del dispositivo podrían causar una condición de denegación de servicio (DoS) en un dispositivo afectado. Para mayor información sobre estas vulnerabilidades, consulte la sección Detalles de este aviso. Nota: LLDP es un protocolo de capa 2. Para explotar estas vulnerabilidades, un atacante debe estar en el mismo dominio de transmisión que el dispositivo afectado (adyacente a Capa 2)"}],"metrics":{"cvssMetricV31":[{"source":"psirt@cisco.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","baseScore":7.4,"baseSeverity":"HIGH","attackVector":"ADJACENT_NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":2.8,"impactScore":4.0},{"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":"psirt@cisco.com","type":"Secondary","description":[{"lang":"en","value":"CWE-119"}]},{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-401"}]}],"configurations":[{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:rv132w_firmware:1.0.0.14:*:*:*:*:*:*:*","matchCriteriaId":"8C12141B-531E-44A5-AD79-16504B31D384"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:rv132w_firmware:1.0.1.14:*:*:*:*:*:*:*","matchCriteriaId":"F5759C3B-CE24-47A4-8513-A2C24028973E"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:rv132w_firmware:1.0.1.20:*:*:*:*:*:*:*","matchCriteriaId":"5CB50517-FD1B-4207-B63B-4E33F7654E2E"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:rv132w:-:*:*:*:*:*:*:*","matchCriteriaId":"8511C48D-9EA6-4521-988C-61E1035BEFA1"}]}]},{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:rv134w_firmware:1.0.0.14:*:*:*:*:*:*:*","matchCriteriaId":"2835C440-025B-414F-BED1-5DA20431E726"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:rv134w_firmware:1.0.1.14:*:*:*:*:*:*:*","matchCriteriaId":"C1E2F2A9-4118-4778-94AB-C996A6F56F0F"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:rv134w_firmware:1.0.1.20:*:*:*:*:*:*:*","matchCriteriaId":"62CC81E5-DA22-47A1-9D02-00A86DED8D96"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:rv134w:-:*:*:*:*:*:*:*","matchCriteriaId":"39710CC4-1891-4E4B-AF65-AC2577CC8FFC"}]}]},{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:rv160_firmware:1.0.0.14:*:*:*:*:*:*:*","matchCriteriaId":"BAA1FCAC-F214-46F5-B2D7-751B24865236"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:rv160_firmware:1.0.1.14:*:*:*:*:*:*:*","matchCriteriaId":"BF13C864-9853-453C-B495-6C642DE9CB69"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:rv160_firmware:1.0.1.20:*:*:*:*:*:*:*","matchCriteriaId":"DA85E0EA-C194-4683-BA09-7C68080924E0"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:rv160:-:*:*:*:*:*:*:*","matchCriteriaId":"EC1DC21D-8C6C-4CE7-B5CB-8646659B02BC"}]}]},{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:rv160w_firmware:1.0.0.14:*:*:*:*:*:*:*","matchCriteriaId":"F75F5D34-CED9-4390-AC75-7F592175DD67"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:rv160w_firmware:1.0.1.14:*:*:*:*:*:*:*","matchCriteriaId":"79A57FFD-BA26-4F6E-B45F-2DF212908843"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:rv160w_firmware:1.0.1.20:*:*:*:*:*:*:*","matchCriteriaId":"95130A28-C573-4BDF-ABDB-45EE96E94406"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:rv160w:-:*:*:*:*:*:*:*","matchCriteriaId":"2B7E3792-5D0F-4CCC-874D-512059CA8E12"}]}]},{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:rv260_firmware:1.0.0.14:*:*:*:*:*:*:*","matchCriteriaId":"9AA93AAF-F894-44AE-98D6-DBF868AC4EBB"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:rv260_firmware:1.0.1.14:*:*:*:*:*:*:*","matchCriteriaId":"EEE01B7F-692D-405D-938D-35E83C62D8F2"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:rv260_firmware:1.0.1.20:*:*:*:*:*:*:*","matchCriteriaId":"FEA38FA6-CACA-4553-853C-E36D6395C3E4"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:rv260:-:*:*:*:*:*:*:*","matchCriteriaId":"6FFC99C1-954E-408B-8A08-C79941350F05"}]}]},{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:rv260p_firmware:1.0.0.14:*:*:*:*:*:*:*","matchCriteriaId":"9A035A4A-B82A-4F0B-8D38-4DD280037C11"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:rv260p_firmware:1.0.1.14:*:*:*:*:*:*:*","matchCriteriaId":"CD084D1A-A03D-4854-9727-76C1FBC1A265"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:rv260p_firmware:1.0.1.20:*:*:*:*:*:*:*","matchCriteriaId":"BDA8B5D4-821E-48CB-81EA-943BD1039087"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:rv260p:-:*:*:*:*:*:*:*","matchCriteriaId":"A62A6E2F-FA43-4F40-A684-651FEDAC2114"}]}]},{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:rv260w_firmware:1.0.0.14:*:*:*:*:*:*:*","matchCriteriaId":"F84DC383-4F05-4294-9008-B5223353526D"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:rv260w_firmware:1.0.1.14:*:*:*:*:*:*:*","matchCriteriaId":"A5DC3490-6E60-4806-874D-E23572DEAF35"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:rv260w_firmware:1.0.1.20:*:*:*:*:*:*:*","matchCriteriaId":"9FED3BFB-7AA7-4A49-B911-58D7CBE8D704"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:rv260w:-:*:*:*:*:*:*:*","matchCriteriaId":"95737F9F-1779-4AAB-875E-2CD586A8B780"}]}]},{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:rv340_firmware:1.0.0.14:*:*:*:*:*:*:*","matchCriteriaId":"EFC9C7EC-388E-476D-A444-EE9BEE3FD578"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:rv340_firmware:1.0.1.14:*:*:*:*:*:*:*","matchCriteriaId":"41A8558B-85AC-442A-9E3E-27EC127C5B33"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:rv340_firmware:1.0.1.20:*:*:*:*:*:*:*","matchCriteriaId":"DD473F62-964C-4D15-B0B6-D9D4AB8E2C1B"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:rv340:-:*:*:*:*:*:*:*","matchCriteriaId":"2A4411AC-2A74-4315-BA6B-D7E1AA538BDB"}]}]},{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:rv340w_firmware:1.0.0.14:*:*:*:*:*:*:*","matchCriteriaId":"4165E6FA-C876-45B4-B48A-7B1D51A028BA"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:rv340w_firmware:1.0.1.14:*:*:*:*:*:*:*","matchCriteriaId":"1B8FB0F6-CAE9-481C-9FC7-69CA0660F506"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:rv340w_firmware:1.0.1.20:*:*:*:*:*:*:*","matchCriteriaId":"35729306-0CFF-4ACD-B77D-172A92FD67DF"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:rv340w:-:*:*:*:*:*:*:*","matchCriteriaId":"21E55019-F969-4ACD-A6C8-1D2EE05F8EE4"}]}]},{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:rv345_firmware:1.0.0.14:*:*:*:*:*:*:*","matchCriteriaId":"784C42BE-E7CD-45F0-8209-436F54812C1D"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:rv345_firmware:1.0.1.14:*:*:*:*:*:*:*","matchCriteriaId":"BEA2331F-521F-4987-83A1-6D0D458B41DB"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:rv345_firmware:1.0.1.20:*:*:*:*:*:*:*","matchCriteriaId":"90F3DC42-58C9-4BC4-AFCC-077C0BDAAB2E"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:rv345:-:*:*:*:*:*:*:*","matchCriteriaId":"5E91E68B-CBE9-462E-82D4-6F588B8E84E8"}]}]},{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:rv345p_firmware:1.0.0.14:*:*:*:*:*:*:*","matchCriteriaId":"5FB2292D-20C8-4929-9802-7FC770952200"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:rv345p_firmware:1.0.1.14:*:*:*:*:*:*:*","matchCriteriaId":"3E16124B-9448-47A0-A6BF-A95B37446E91"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:rv345p_firmware:1.0.1.20:*:*:*:*:*:*:*","matchCriteriaId":"948587E0-67B8-4A80-AFAA-96A22F522F42"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:rv345p:-:*:*:*:*:*:*:*","matchCriteriaId":"5120BAB7-FB3A-481E-9ECD-48341846AFBD"}]}]}],"references":[{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-multi-lldp-u7e4chCe","source":"psirt@cisco.com","tags":["Vendor Advisory"]},{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-multi-lldp-u7e4chCe","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"]}]}}]}