{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-18T13:46:07.549","vulnerabilities":[{"cve":{"id":"CVE-2019-15989","sourceIdentifier":"psirt@cisco.com","published":"2020-01-26T05:15:13.567","lastModified":"2024-11-21T04:29:52.940","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"A vulnerability in the implementation of the Border Gateway Protocol (BGP) functionality in Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to incorrect processing of a BGP update message that contains a specific BGP attribute. An attacker could exploit this vulnerability by sending BGP update messages that include a specific, malformed attribute 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 this vulnerability, 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":"Una vulnerabilidad en la implementación de la funcionalidad Border Gateway Protocol (BGP) en Cisco IOS XR Software, podría permitir a un atacante remoto no autenticado causar una condición de denegación de servicio (DoS). La vulnerabilidad es debido al procesamiento incorrecto de un mensaje de actualización BGP que contiene un atributo BGP específico. Un atacante podría explotar esta vulnerabilidad mediante el envío de mensajes de actualización de BGP que incluyan un atributo específico con malformación para que un sistema afectado lo procese. Una explotación con éxito podría permitir al atacante causar que el proceso BGP se reinicie inesperadamente, resultando en una condición DoS. La implementación de Cisco de BGP acepta el tráfico de BGP entrante solo desde peers definidos explícitamente. Para explotar esta vulnerabilidad, el mensaje de actualización de BGP malicioso necesitaría venir de un peer BGP válido y configurado o el atacante debería inyectarlo en la red BGP victim’s en una conexión TCP válida existente a 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-754"}]},{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-754"}]}],"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_9000v:-:*:*:*:*:*:x64:*","matchCriteriaId":"1BD9FC30-C073-4C63-8468-47DEF12A3875"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_9001:-:*:*:*:*:*:x64:*","matchCriteriaId":"E9B8E1A6-A438-441D-ADA2-BE2BF837EAA9"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_9006:-:*:*:*:*:*:x64:*","matchCriteriaId":"BB7DD32E-B22D-4392-B255-5C3F9CD39F3E"},{"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_9901:-:*:*:*:*:*:x64:*","matchCriteriaId":"E7D9C475-6E5D-4AE9-A8D4-5B023C128A46"},{"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_9906:-:*:*:*:*:*:x64:*","matchCriteriaId":"910A1686-5B13-4D37-9C1F-2F0073D57E5F"},{"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_5501:-:*:*:*:*:*:*:*","matchCriteriaId":"0A972EFE-4F7E-4BFC-8631-66A2D16B74A3"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:ncs_5501-se:-:*:*:*:*:*:*:*","matchCriteriaId":"1B254955-C485-45D7-A19B-E78CE1D997AD"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:ncs_5502:-:*:*:*:*:*:*:*","matchCriteriaId":"7F72AEF0-EE70-40F8-B52B-1390820B87BB"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:ncs_5502-se:-:*:*:*:*:*:*:*","matchCriteriaId":"50C7B71A-2559-4E90-BAAA-C6FAAFE35FC3"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:ncs_5508:-:*:*:*:*:*:*:*","matchCriteriaId":"43D21B01-A754-474F-8E46-14D733AB307E"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:ncs_5516:-:*:*:*:*:*:*:*","matchCriteriaId":"17D6424C-972F-459C-B8F7-04FFD9F541BC"},{"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_9000v:-:*:*:*:*:*:*:*","matchCriteriaId":"71BD158E-71D8-4DCA-8C09-F8AB7EF0EBDD"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_9000v:-:*:*:*:*:*:x64:*","matchCriteriaId":"1BD9FC30-C073-4C63-8468-47DEF12A3875"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_9001:-:*:*:*:*:*:*:*","matchCriteriaId":"324C97E6-1810-404F-9F45-6240F99FF039"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_9001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