{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-28T10:40:56.728","vulnerabilities":[{"cve":{"id":"CVE-2019-12646","sourceIdentifier":"psirt@cisco.com","published":"2019-09-25T20:15:10.353","lastModified":"2024-11-21T04:23:15.173","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"A vulnerability in the Network Address Translation (NAT) Session Initiation Protocol (SIP) Application Layer Gateway (ALG) of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload. The vulnerability is due to improper processing of transient SIP packets on which NAT is performed on an affected device. An attacker could exploit this vulnerability by using UDP port 5060 to send crafted SIP packets through an affected device that is performing NAT for SIP packets. A successful exploit could allow an attacker to cause the device to reload, resulting in a denial of service (DoS) condition."},{"lang":"es","value":"Una vulnerabilidad en el Network Address Translation (NAT) Session Initiation Protocol (SIP) Application Layer Gateway (ALG) del Software Cisco IOS XE, podría permitir a un atacante remoto no autenticado causar que un dispositivo afectado se recargue. La vulnerabilidad es debido al procesamiento inapropiado de paquetes SIP transitorios en los que se realiza NAT en un dispositivo afectado. Un atacante podría explotar esta vulnerabilidad utilizando el puerto UDP 5060 para enviar paquetes SIP diseñados por medio de un dispositivo afectado que está realizando NAT para paquetes SIP. Una explotación con éxito podría permitir a un atacante causar que el dispositivo se recargue, conllevando a una condición de denegación de servicio (DoS)."}],"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":"CWE-665"}]}],"configurations":[{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios_xe:15.4\\(3\\)s:*:*:*:*:*:*:*","matchCriteriaId":"7E142E50-BDDB-4F49-8270-CB7E2D3C815C"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios_xe:15.5\\(3\\)s:*:*:*:*:*:*:*","matchCriteriaId":"E64CE383-D9D5-45EF-9E68-E048D8DD9231"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios_xe:15.6\\(1\\)s:*:*:*:*:*:*:*","matchCriteriaId":"6A4A987C-C8E2-4193-9D92-9D97D4A1CE8C"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios_xe:16.3.1:*:*:*:*:*:*:*","matchCriteriaId":"296636F1-9242-429B-8472-90352C056106"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios_xe:16.4.1:*:*:*:*:*:*:*","matchCriteriaId":"77E8AF15-AB46-4EAB-8872-8C55E8601599"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios_xe:16.5.1:*:*:*:*:*:*:*","matchCriteriaId":"FE7B2557-821D-4E05-B5C3-67192573D97D"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios_xe:16.6.1:*:*:*:*:*:*:*","matchCriteriaId":"F821EBD7-91E2-4460-BFAF-18482CF6CB8C"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios_xe:16.7.1:*:*:*:*:*:*:*","matchCriteriaId":"623BF701-ADC9-4F24-93C5-043A6A7FEF5F"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios_xe:16.8.1:*:*:*:*:*:*:*","matchCriteriaId":"57D4F634-03D5-4D9F-901C-7E9CE45F2F38"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios_xe:16.9.1:*:*:*:*:*:*:*","matchCriteriaId":"119A964D-ABC8-424D-8097-85B832A833BD"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios_xe:16.10.1:*:*:*:*:*:*:*","matchCriteriaId":"DB6BD18B-B9BD-452F-986E-16A6668E46B6"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios_xe:16.11.1:*:*:*:*:*:*:*","matchCriteriaId":"E91F8704-6DAD-474A-84EA-04E4AF7BB9B1"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios_xe:16.12.1:*:*:*:*:*:*:*","matchCriteriaId":"C98DED36-D4B5-48D6-964E-EEEE97936700"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:1100-4p:-:*:*:*:*:*:*:*","matchCriteriaId":"AA8D5057-138A-42C4-BA35-8077A0A60068"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:1100-8p:-:*:*:*:*:*:*:*","matchCriteriaId":"ED555B12-41F4-4D62-B519-22601FB7AF8D"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:1101-4p:-:*:*:*:*:*:*:*","matchCriteriaId":"21B10158-5235-483E-BACD-C407609EA6BE"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:1109-2p:-:*:*:*:*:*:*:*","matchCriteriaId":"8964F9BA-6E6C-44BF-9A8C-93D081B6678C"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:1109-4p:-:*:*:*:*:*:*:*","matchCriteriaId":"51251FE1-67D2-4903-B7D3-E0C727B9A93C"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:1111x-8p:-:*:*:*:*:*:*:*","matchCriteriaId":"784E4562-FE26-4049-9D23-4CA46432EE14"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:4221_integrated_services_router:-:*:*:*:*:*:*:*","matchCriteriaId":"6C8AED7C-DDA3-4C29-BB95-6518C02C551A"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:4331_integrated_services_router:-:*:*:*:*:*:*:*","matchCriteriaId":"5419CB9F-241F-4431-914F-2659BE27BEA5"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:csr_1000v:-:*:*:*:*:*:*:*","matchCriteriaId":"BF8B0B49-2C99-410B-B011-5B821C5992FB"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:encs_5100:-:*:*:*:*:*:*:*","matchCriteriaId":"678F3A32-372A-441E-8115-95181FBAF628"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:encs_5400:-:*:*:*:*:*:*:*","matchCriteriaId":"01AE8153-6C23-46AB-BEA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