{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-24T09:15:53.073","vulnerabilities":[{"cve":{"id":"CVE-2017-6678","sourceIdentifier":"psirt@cisco.com","published":"2017-06-26T07:29:00.247","lastModified":"2025-04-20T01:37:25.860","vulnStatus":"Deferred","cveTags":[],"descriptions":[{"lang":"en","value":"A vulnerability in the ingress UDP packet processing functionality of Cisco Virtualized Packet Core-Distributed Instance (VPC-DI) Software 19.2 through 21.0 could allow an unauthenticated, remote attacker to cause both control function (CF) instances on an affected system to reload, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient handling of user-supplied data by the affected software. An attacker could exploit this vulnerability by sending crafted UDP packets to the distributed instance (DI) network addresses of both CF instances on an affected system. A successful exploit could allow the attacker to cause an unhandled error condition on the affected system, which would cause the CF instances to reload and consequently cause the entire VPC to reload, resulting in the disconnection of all subscribers and a DoS condition on the affected system. This vulnerability can be exploited via IPv4 traffic only. Cisco Bug IDs: CSCvc01665 CSCvc35565."},{"lang":"es","value":"Una vulnerabilidad en la funcionalidad de procesamiento de paquetes de entrada UDP del software Cisco Virtualized Packet Core-Distributed Instance (VPC-DI) de la versión 19.2 a la 21.0 podría permitir que un atacante remoto no autenticado haga que ambas instancias de función de control (CF) se recarguen en un sistema afectado, lo que resulta en una denegación de servicio (DoS). La vulnerabilidad se debe a la gestión insuficiente por parte del software afectado de datos proporcionados por el usuario. Un atacante podría explotar esta vulnerabilidad enviando paquetes UDP manipulados a las direcciones de red de la instancia distribuida (DI) de ambas instancias CF en un sistema afectado. Un exploit con éxito podría permitir que el atacante provoque una condición de error no gestionada en el sistema afectado, lo que provocaría que las instancias CF se recarguen y hagan que el VPC completo se recargue. Esto resulta en la desconexión de todos los suscriptores y una condición de denegación de servicio (DoS) en el sistema afectado. Esta vulnerabilidad solo puede ser explotada mediante tráfico IPv4. Cisco Bug IDs: CSCvc01665 CSCvc35565."}],"metrics":{"cvssMetricV30":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.0","vectorString":"CVSS:3.0/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}],"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":"CWE-755"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:cisco:virtualized_packet_core:v19.2_base:*:*:*:*:*:*:*","matchCriteriaId":"76DE3913-DE6C-48A2-BB24-6AF617501DF4"},{"vulnerable":true,"criteria":"cpe:2.3:a:cisco:virtualized_packet_core:v19.3_base:*:*:*:*:*:*:*","matchCriteriaId":"89FE29AF-11C8-495F-86C2-B19B14FD4D7E"},{"vulnerable":true,"criteria":"cpe:2.3:a:cisco:virtualized_packet_core:v20.0_base:*:*:*:*:*:*:*","matchCriteriaId":"9F3CA29A-DA96-4C48-8140-A73C5857DBE7"},{"vulnerable":true,"criteria":"cpe:2.3:a:cisco:virtualized_packet_core:v20.1_base:*:*:*:*:*:*:*","matchCriteriaId":"A7E2AF37-4985-433F-80BE-7060E921A3B7"},{"vulnerable":true,"criteria":"cpe:2.3:a:cisco:virtualized_packet_core:v20.2_base:*:*:*:*:*:*:*","matchCriteriaId":"E4DC29E7-BEE9-4CAA-892C-77FD39A10263"},{"vulnerable":true,"criteria":"cpe:2.3:a:cisco:virtualized_packet_core:v21.0_base:*:*:*:*:*:*:*","matchCriteriaId":"36453D39-614F-4086-8977-A4466BBB6B64"}]}]}],"references":[{"url":"http://www.securityfocus.com/bid/99195","source":"psirt@cisco.com","tags":["Third Party Advisory","VDB Entry"]},{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170621-vpc","source":"psirt@cisco.com","tags":["Vendor Advisory"]},{"url":"http://www.securityfocus.com/bid/99195","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory","VDB Entry"]},{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170621-vpc","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"]}]}}]}