{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-19T10:01:54.672","vulnerabilities":[{"cve":{"id":"CVE-2019-1890","sourceIdentifier":"psirt@cisco.com","published":"2019-07-04T20:15:11.123","lastModified":"2024-11-21T04:37:37.437","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"A vulnerability in the fabric infrastructure VLAN connection establishment of the Cisco Nexus 9000 Series Application Centric Infrastructure (ACI) Mode Switch Software could allow an unauthenticated, adjacent attacker to bypass security validations and connect an unauthorized server to the infrastructure VLAN. The vulnerability is due to insufficient security requirements during the Link Layer Discovery Protocol (LLDP) setup phase of the infrastructure VLAN. An attacker could exploit this vulnerability by sending a malicious LLDP packet on the adjacent subnet to the Cisco Nexus 9000 Series Switch in ACI mode. A successful exploit could allow the attacker to connect an unauthorized server to the infrastructure VLAN, which is highly privileged. With a connection to the infrastructure VLAN, the attacker can make unauthorized connections to Cisco Application Policy Infrastructure Controller (APIC) services or join other host endpoints."},{"lang":"es","value":"Una vulnerabilidad en el establecimiento de conexión VLAN de la infraestructura de Cisco Nexus 9000 Series Application Centric Infrastructure (ACI) Mode Switch Software podría permitir a un atacante adyacente no autenticado eludir las validaciones de seguridad y conectar un servidor no autorizado a la infraestructura VLAN. La vulnerabilidad se debe a requisitos de seguridad insuficientes durante la fase de configuración del protocolo de descubrimiento de capa de enlace (LLDP) de la infraestructura VLAN. Un atacante podría aprovechar esta vulnerabilidad enviando un paquete LLDP malintencionado en la subred adyacente al conmutador Cisco Nexus 9000 Series en modo ACI. Una explotación con éxito podría permitir que el atacante conecte un servidor no autorizado a la infraestructura VLAN, que es altamente privilegiada. Con una conexión a la VLAN de infraestructura, el atacante puede realizar conexiones no autorizadas a los servicios Cisco Application Policy Infrastructure Controller (APIC) o unirse a otros puntos finales de host."}],"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:N/I:H/A:N","baseScore":6.5,"baseSeverity":"MEDIUM","attackVector":"ADJACENT_NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"HIGH","availabilityImpact":"NONE"},"exploitabilityScore":2.8,"impactScore":3.6}],"cvssMetricV30":[{"source":"psirt@cisco.com","type":"Secondary","cvssData":{"version":"3.0","vectorString":"CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N","baseScore":7.4,"baseSeverity":"HIGH","attackVector":"ADJACENT_NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"NONE","integrityImpact":"HIGH","availabilityImpact":"NONE"},"exploitabilityScore":2.8,"impactScore":4.0}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:A/AC:L/Au:N/C:N/I:P/A:N","baseScore":3.3,"accessVector":"ADJACENT_NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"PARTIAL","availabilityImpact":"NONE"},"baseSeverity":"LOW","exploitabilityScore":6.5,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"weaknesses":[{"source":"psirt@cisco.com","type":"Secondary","description":[{"lang":"en","value":"CWE-284"}]},{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"NVD-CWE-Other"}]}],"configurations":[{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:cisco:application_policy_infrastructure_controller:7.3\\(0\\)zn\\(0.113\\):*:*:*:*:*:*:*","matchCriteriaId":"2A9DBF19-A5F0-4F62-84FB-1C73FCA1BF23"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:9432pq:-:*:*:*:*:*:*:*","matchCriteriaId":"5E88418C-0BC4-4D90-A14D-0B89F8399AA5"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:9536pq:-:*:*:*:*:*:*:*","matchCriteriaId":"4AB93AD1-B5DD-4A69-B1A3-3F163BD2D8BA"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:9636pq:-:*:*:*:*:*:*:*","matchCriteriaId":"19F88FB2-1A75-4166-A4F5-039D67EAA1D9"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:9736pq:-:*:*:*:*:*:*:*","matchCriteriaId":"A01B0559-5632-4658-AA3A-221DD28D963F"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:n9k-x9432c-s:-:*:*:*:*:*:*:*","matchCriteriaId":"082A5A44-DC9A-4B48-8F28-1D0EC7F82410"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:n9k-x9464px:-:*:*:*:*:*:*:*","matchCriteriaId":"19BCB669-5CC8-4C67-B34C-3F5ADDD4C232"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:n9k-x9464tx2:-:*:*:*:*:*:*:*","matchCriteriaId":"D5E693D2-F1D5-4D22-885B-AE853221ABA9"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:n9k-x9564px:-:*:*:*:*:*:*:*","matchCriteriaId":"C63F63AD-94EC-4A6D-92AF-7FBF6275746A"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:n9k-x9564tx:-:*:*:*:*:*:*:*","matchCriteriaId":"490EAB88-A0F3-4A88-9A81-B414CE78B34B"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:n9k-x9636c-r:-:*:*:*:*:*:*:*","matchCriteriaId":"7A9CE53D-E8B7-46CD-9B8B-C746A2524BA8"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:n9k-x9636c-rx:-:*:*:*:*:*:*:*","matchCriteriaId":"C6782DA1-5568-410D-86E6-2C2B909693DD"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:n9k-x97160yc-ex:-:*:*:*:*:*:*:*","matchCriteriaId":"04A26215-DEB3-4337-AFE0-5E23C760060D"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:n9k-x9732c-ex:-:*:*:*:*:*:*:*","matchCriteriaId":"6B8F7177-147E-47C0-ADFB-4CD0768D52CD"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:n9k-x9732c-fx:-:*:*:*:*:*:*:*","matchCriteriaId":"06A72F9F-773A-463D-8BEB-6B316DF21CFD"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:n9k-x9736c-ex:-:*:*:*:*:*:*:*","matchCriteriaId":"8FC94E7D-84AF-4D2A-85A7-264CED2D107B"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:n9k-x9736c-fx:-:*:*:*:*:*:*:*","matchCriteriaId":"BC0082AD-1EFB-4AFE-9974-EAAB926553F3"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:n9k-x9788tc-fx:-:*:*:*:*:*:*:*","matchCriteriaId":"4BFAAE41-AD17-4F69-9029-8DD90D824E6F"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:nexus_92160yc-x:-:*:*:*:*:*:*:*","matchCriteriaId":"4283E433-7F8C-4410-B565-471415445811"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:nexus_93108tc-ex:-:*:*:*:*:*:*:*","matchCriteriaId":"A90184B3-C82F-4CE5-B2AD-97D5E4690871"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:nexus_93108tc-fx:-:*:*:*:*:*:*:*","matchCriteriaId":"4AB89849-6DA4-4C9D-BC3F-EE0E41FD1901"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:nexus_93120tx:-:*:*:*:*:*:*:*","matchCriteriaId":"07DE6F63-2C7D-415B-8C34-01EC05C062F3"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:nexus_9316d-gx:-:*:*:*:*:*:*:*","matchCriteriaId":"102F91CD-DFB6-43D4-AE5B-DA157A696230"},{"vulnerable":false,"criteria":"c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