{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-21T03:43:55.389","vulnerabilities":[{"cve":{"id":"CVE-2019-12652","sourceIdentifier":"psirt@cisco.com","published":"2019-09-25T21:15:10.593","lastModified":"2024-11-21T04:23:16.060","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"A vulnerability in the ingress packet processing function of Cisco IOS Software for Cisco Catalyst 4000 Series Switches could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper resource allocation when processing TCP packets directed to the device on specific Cisco Catalyst 4000 Series Switches. An attacker could exploit this vulnerability by sending crafted TCP streams to an affected device. A successful exploit could cause the affected device to run out of buffer resources, impairing operations of control plane and management plane protocols, resulting in a DoS condition. This vulnerability can be triggered only by traffic that is destined to an affected device and cannot be exploited using traffic that transits an affected device."},{"lang":"es","value":"Una vulnerabilidad en la función de procesamiento de paquetes de ingreso del software Cisco IOS para Cisco Catalyst 4000 Series Switches, podría permitir a un atacante remoto no autenticado causar una condición de denegación de servicio (DoS) sobre un dispositivo afectado. La vulnerabilidad es debido a la asignación de recursos inapropiada cuando se procesan paquetes TCP direccionados al dispositivo sobre Cisco Catalyst 4000 Series Switches específicos. Un atacante podría explotar esta vulnerabilidad mediante el envío de secuencias TCP diseñadas hacia un dispositivo afectado. Una explotación con éxito podría causar que el dispositivo afectado se quede sin recursos de almacenamiento intermedio, perjudicando las operaciones del plano de control y los protocolos del plano de administración, resultando en una condición DoS. Esta vulnerabilidad solo puede ser activada por el tráfico que está destinado hacia un dispositivo afectado y no puede ser explotado utilizando el tráfico que transita en un dispositivo afectado."}],"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:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6}],"cvssMetricV30":[{"source":"psirt@cisco.com","type":"Secondary","cvssData":{"version":"3.0","vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","baseScore":8.6,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":4.0}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:N/I:N/A:C","baseScore":7.8,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"COMPLETE"},"baseSeverity":"HIGH","exploitabilityScore":10.0,"impactScore":6.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"weaknesses":[{"source":"psirt@cisco.com","type":"Secondary","description":[{"lang":"en","value":"CWE-399"}]},{"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:o:cisco:ios:15.2\\(3\\)e1:*:*:*:*:*:*:*","matchCriteriaId":"757000B2-A8EB-464A-9A2D-EC4D920A0569"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios:15.2\\(4\\)e3:*:*:*:*:*:*:*","matchCriteriaId":"7A9DDD1E-201F-42B8-ADC9-9CD2F3ED2C4F"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:catalyst_4500_supervisor_engine_6-e:-:*:*:*:*:*:*:*","matchCriteriaId":"0EF8023F-C8D7-4B98-9472-6EC365A19D48"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:catalyst_4500_supervisor_engine_6l-e:-:*:*:*:*:*:*:*","matchCriteriaId":"15B137CB-C12C-47AF-9AF5-05C1B2086351"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:catalyst_4900m:-:*:*:*:*:*:*:*","matchCriteriaId":"21A39CB5-8F97-4030-B9CD-D28BF5C811F6"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:catalyst_4948e:-:*:*:*:*:*:*:*","matchCriteriaId":"472D57ED-EF56-4429-9341-BEC711215ED3"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:catalyst_4948e-f:-:*:*:*:*:*:*:*","matchCriteriaId":"A405EFE7-7E96-47F1-A97D-E27923B8D98C"}]}]}],"references":[{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190925-cat4000-tcp-dos","source":"psirt@cisco.com","tags":["Vendor Advisory"]},{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190925-cat4000-tcp-dos","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"]}]}}]}