{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-17T14:55:08.229","vulnerabilities":[{"cve":{"id":"CVE-2017-12213","sourceIdentifier":"psirt@cisco.com","published":"2017-09-07T21:29:00.317","lastModified":"2025-04-20T01:37:25.860","vulnStatus":"Deferred","cveTags":[],"descriptions":[{"lang":"en","value":"A vulnerability in the dynamic access control list (ACL) feature of Cisco IOS XE Software running on Cisco Catalyst 4000 Series Switches could allow an unauthenticated, adjacent attacker to cause dynamic ACL assignment to fail and the port to fail open. This could allow the attacker to pass traffic to the default VLAN of the affected port. The vulnerability is due to an uncaught error condition that may occur during the reassignment of the auth-default-ACL dynamic ACL to a switch port after 802.1x authentication fails. A successful exploit of this issue could allow a physically adjacent attacker to bypass 802.1x authentication and cause the affected port to fail open, allowing the attacker to pass traffic to the default VLAN of the affected switch port. Cisco Bug IDs: CSCvc72751."},{"lang":"es","value":"Una vulnerabilidad en la característica de lista de control de acceso (ACL) dinámica de Cisco IOS XE Software que se ejecuta en Cisco Catalyst 4000 Series Switches podría permitir que un atacante adyacente no autenticado provoque un fallo en la asignación de listas de control de acceso dinámicas y que el puerto falle y quede abierto. Esto podría permitir a un atacante pasar tráfico al VLAN por defecto del puerto afectado. Esta vulnerabilidad se debe a una condición de error no capturado que podría ocurrir durante la reasignación de lista de control de acceso dinámicas auth-default-ACL a un puerto switch después de que la autenticación 802.1 falle. Una explotación con éxito de esta vulnerabilidad podría permitir a un atacante físicamente adyacente omitir la autenticación 802.1x y provocar que el puerto afectado quede abierto por error, permitiendo que el atacante pase tráfico al VLAN por defecto del puerto switch afectado. Cisco Bug IDs: CSCvc72751."}],"metrics":{"cvssMetricV30":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.0","vectorString":"CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","baseScore":4.3,"baseSeverity":"MEDIUM","attackVector":"ADJACENT_NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"NONE"},"exploitabilityScore":2.8,"impactScore":1.4}],"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-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:cisco:ios_xe:-:*:*:*:*:*:*:*","matchCriteriaId":"B7D95E8A-8F0B-44E5-B266-09E10BAAEC55"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:catalyst_4000:-:*:*:*:*:*:*:*","matchCriteriaId":"8320F2D5-4847-460C-A8A7-3E7E22C5E0C7"}]}]}],"references":[{"url":"http://www.securityfocus.com/bid/100663","source":"psirt@cisco.com","tags":["Third Party Advisory","VDB Entry"]},{"url":"http://www.securitytracker.com/id/1039284","source":"psirt@cisco.com","tags":["Third Party Advisory","VDB Entry"]},{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170906-cat","source":"psirt@cisco.com","tags":["Mitigation","Vendor Advisory"]},{"url":"http://www.securityfocus.com/bid/100663","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory","VDB Entry"]},{"url":"http://www.securitytracker.com/id/1039284","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory","VDB Entry"]},{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170906-cat","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Mitigation","Vendor Advisory"]}]}}]}