{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-29T00:20:27.107","vulnerabilities":[{"cve":{"id":"CVE-2020-3426","sourceIdentifier":"psirt@cisco.com","published":"2020-09-24T18:15:19.290","lastModified":"2024-11-21T05:31:02.753","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"A vulnerability in the implementation of the Low Power, Wide Area (LPWA) subsystem of Cisco IOS Software for Cisco 800 Series Industrial Integrated Services Routers (Industrial ISRs) and Cisco 1000 Series Connected Grid Routers (CGR1000) could allow an unauthenticated, remote attacker to gain unauthorized read access to sensitive data or cause a denial of service (DoS) condition. The vulnerability is due to a lack of input and validation checking mechanisms for virtual-LPWA (VLPWA) protocol modem messages. An attacker could exploit this vulnerability by supplying crafted packets to an affected device. A successful exploit could allow the attacker to gain unauthorized read access to sensitive data or cause the VLPWA interface of the affected device to shut down, resulting in DoS condition."},{"lang":"es","value":"Una vulnerabilidad en la implementación del subsistema Low Power, Wide Area (LPWA) de Cisco IOS Software para Cisco 800 Series Industrial Integrated Services Routers (Industrial ISRs) y Cisco 1000 Series Connected Grid Routers (CGR1000), podría permitir a un atacante remoto no autenticado conseguir acceso de lectura no autorizado a datos confidenciales o causar una condición de denegación de servicio (DoS). La vulnerabilidad es debido a la falta de mecanismos de comprobación de entrada para mensajes de módem de protocolo virtual-LPWA (VLPWA). Un atacante podría explotar esta vulnerabilidad mediante el suministro de paquetes diseñados hacia un dispositivo afectado. Una explotación con éxito podría permitir al atacante conseguir acceso de lectura no autorizado a datos confidenciales o hacer que la interfaz VLPWA del dispositivo afectado se apague, resultando una condición DoS."}],"metrics":{"cvssMetricV31":[{"source":"psirt@cisco.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE"},"exploitabilityScore":3.9,"impactScore":3.6},{"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:H/I:N/A:H","baseScore":9.1,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":5.2}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:P/I:N/A:P","baseScore":6.4,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"NONE","availabilityImpact":"PARTIAL"},"baseSeverity":"MEDIUM","exploitabilityScore":10.0,"impactScore":4.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"weaknesses":[{"source":"psirt@cisco.com","type":"Secondary","description":[{"lang":"en","value":"CWE-264"}]},{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-20"}]}],"configurations":[{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios:-:*:*:*:*:*:*:*","matchCriteriaId":"B6230A85-30D2-4934-A8A0-11499B7B09F8"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:1120_connected_grid_router:-:*:*:*:*:*:*:*","matchCriteriaId":"6835F8AD-B55D-4B57-B3B5-0095E309B2B3"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:1240_connected_grid_router:-:*:*:*:*:*:*:*","matchCriteriaId":"1AB6ACAE-8C89-48F6-95BA-DE32F4F81FE6"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:807_industrial_integrated_services_router:-:*:*:*:*:*:*:*","matchCriteriaId":"0EEA0369-B5B1-41FD-98EE-F7F4EAB9863D"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:809_industrial_integrated_services_router:-:*:*:*:*:*:*:*","matchCriteriaId":"EF4558F1-B87C-439F-AF8F-C19AACAB80E0"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:829_industrial_integrated_services_router:-:*:*:*:*:*:*:*","matchCriteriaId":"398D63B0-F15B-409B-AFBC-DE6C94FAF815"}]}]}],"references":[{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-lpwa-access-cXsD7PRA","source":"psirt@cisco.com","tags":["Vendor Advisory"]},{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-lpwa-access-cXsD7PRA","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"]}]}}]}