{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-30T05:05:00.171","vulnerabilities":[{"cve":{"id":"CVE-2019-16019","sourceIdentifier":"psirt@cisco.com","published":"2020-09-23T01:15:13.847","lastModified":"2024-11-21T04:29:56.263","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"Multiple vulnerabilities in the implementation of Border Gateway Protocol (BGP) Ethernet VPN (EVPN) functionality in Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerabilities are due to incorrect processing of BGP update messages that contain crafted EVPN attributes. An attacker could exploit these vulnerabilities by sending BGP EVPN update messages with malformed attributes to be processed by an affected system. A successful exploit could allow the attacker to cause the BGP process to restart unexpectedly, resulting in a DoS condition. The Cisco implementation of BGP accepts incoming BGP traffic only from explicitly defined peers. To exploit these vulnerabilities, the malicious BGP update message would need to come from a configured, valid BGP peer, or would need to be injected by the attacker into the victim's BGP network on an existing, valid TCP connection to a BGP peer."},{"lang":"es","value":"Múltiples vulnerabilidades en la implementación de la funcionalidad Border Gateway Protocol (BGP) Ethernet VPN (EVPN) en Cisco IOS XR Software, podrían permitir a un atacante remoto no autenticado causar una condición de denegación de servicio (DoS). Las vulnerabilidades son debido al procesamiento incorrecto de los mensajes de actualización de BGP que contienen atributos EVPN diseñados. Un atacante podría explotar estas vulnerabilidades mediante el envío de mensajes de actualización de BGP EVPN con atributos malformados para que sean procesados por un sistema afectado. Una explotación con éxito podría permitir a un atacante causar que el proceso BGP se reinicie inesperadamente, resultando en una condición DoS. La implementación de Cisco de BGP acepta tráfico BGP entrante solo de peers definidos explícitamente. Para explotar estas vulnerabilidades, el mensaje de actualización de BGP malicioso necesitaría provenir de un peer BGP válido configurado, o necesitaría ser inyectado por el atacante en la red BGP de la víctima en una conexión TCP válida existente para un peer BGP"}],"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: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}],"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:P","baseScore":5.0,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL"},"baseSeverity":"MEDIUM","exploitabilityScore":10.0,"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-399"}]},{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"NVD-CWE-noinfo"}]}],"configurations":[{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios_xr:6.6.1:*:*:*:*:*:*:*","matchCriteriaId":"54EA6C52-E541-4426-A3DF-2FA88CA28BA1"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_9000:-:*:*:*:*:*:x64:*","matchCriteriaId":"1E82A9DB-C7ED-4BD9-8BAA-71928A23485C"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_9010:-:*:*:*:*:*:x64:*","matchCriteriaId":"915D9708-E3AC-447A-A67C-815A8E282A42"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_9904:-:*:*:*:*:*:x64:*","matchCriteriaId":"0FB63566-D9F5-4A36-87E2-AC87ADB9DE6C"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_9910:-:*:*:*:*:*:x64:*","matchCriteriaId":"430F0546-C2E9-41EE-8A8E-1C63945160F3"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_9912:-:*:*:*:*:*:x64:*","matchCriteriaId":"E1D3885B-7BEC-49DA-AE56-0DA18117C9E7"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_9922:-:*:*:*:*:*:x64:*","matchCriteriaId":"1496BE0A-B0BA-48BC-A476-A85A6D62EA50"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:ncs_540:-:*:*:*:*:*:*:*","matchCriteriaId":"BC7AE6C1-B7C6-4056-9719-B5CFF71970AD"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:ncs_5500:-:*:*:*:*:*:*:*","matchCriteriaId":"D686F339-9406-4ADF-B124-C815D43E4CAA"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:ncs_6000:-:*:*:*:*:*:*:*","matchCriteriaId":"523058BF-DE14-4FAD-8A67-C8CA795032D9"}]}]},{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios_xr:6.6.2:*:*:*:*:*:*:*","matchCriteriaId":"B8AE8971-5003-4A39-8173-E17CE9C2523F"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_9000:-:*:*:*:*:*:-:*","matchCriteriaId":"A15B6B59-E90B-43A8-B4E7-3718FE6990AE"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_9000:-:*:*:*:*:*:x64:*","matchCriteriaId":"1E82A9DB-C7ED-4BD9-8BAA-71928A23485C"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_9010:-:*:*:*:*:*:-:*","matchCriteriaId":"A50A1CA4-F928-4787-ADB4-0274301B7EF6"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_9010:-:*:*:*:*:*:x64:*","matchCriteriaId":"915D9708-E3AC-447A-A67C-815A8E282A42"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_9904:-:*:*:*:*:*:-:*","matchCriteriaId":"9FF5102C-3163-48F1-8D44-352D6715288D"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_9904:-:*:*:*:*:*:x64:*","matchCriteriaId":"0FB63566-D9F5-4A36-87E2-AC87ADB9DE6C"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_9910:-:*:*:*:*:*:-:*","matchCriteriaId":"7FA1F27F-3265-482D-AD31-BCB300419526"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_9910:-:*:*:*:*:*:x64:*","matchCriteriaId":"430F0546-C2E9-41EE-8A8E-1C63945160F3"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_9912:-:*:*:*:*:*:-:*","matchCriteriaId":"6D1A5E2E-1CF6-4E3D-A474-9AA26758E574"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_9912:-:*:*:*:*:*:x64:*","matchCriteriaId":"E1D3885B-7BEC-49DA-AE56-0DA18117C9E7"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_9922:-:*:*:*:*:*:-:*","matchCriteriaId":"3AE8FA9B-C71B-42AE-94B2-580F505BC17F"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_9922:-:*:*:*:*:*:x64:*","matchCriteriaId":"1496BE0A-B0BA-48BC-A476-A85A6D62EA50"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:carrier_r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