2 lines
11 KiB
JSON
2 lines
11 KiB
JSON
{"affected":[{"affectedData":[{"product":"Cisco 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vulnerability in the ISDN subsystem of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause a reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient input validation when the ISDN Q.931 messages are processed. An attacker could exploit this vulnerability by sending a malicious ISDN Q.931 message to an affected device. A successful exploit could allow the attacker to cause the process to crash, resulting in a reload of the affected device."},{"lang":"es","value":"Una vulnerabilidad en el subsistema ISDN de Cisco IOS Software y Cisco IOS XE Software, podría permitir a un atacante adyacente no autenticado causar una recarga de un dispositivo afectado, resultando en una condición de denegación de servicio (DoS). La vulnerabilidad es debido a una comprobación insuficiente de la entrada cuando son procesados los mensajes ISDN Q.931. Un atacante podría explotar esta vulnerabilidad mediante el envío de un mensaje ISDN Q.931 malicioso hacia un dispositivo afectado. Una explotación con éxito podría permitir al atacante causar que el proceso se bloquee, resultando en una recarga del dispositivo afectado."}],"id":"CVE-2020-3511","lastModified":"2026-06-17T03:18:28.423","metrics":{"cvssMetricV2":[{"acInsufInfo":false,"baseSeverity":"MEDIUM","cvssData":{"accessComplexity":"LOW","accessVector":"ADJACENT_NETWORK","authentication":"NONE","availabilityImpact":"COMPLETE","baseScore":6.1,"confidentialityImpact":"NONE","integrityImpact":"NONE","vectorString":"AV:A/AC:L/Au:N/C:N/I:N/A:C","version":"2.0"},"exploitabilityScore":6.5,"impactScore":6.9,"obtainAllPrivilege":false,"obtainOtherPrivilege":false,"obtainUserPrivilege":false,"source":"nvd@nist.gov","type":"Primary","userInteractionRequired":false}],"cvssMetricV30":[{"cvssData":{"attackComplexity":"LOW","attackVector":"ADJACENT_NETWORK","availabilityImpact":"HIGH","baseScore":7.4,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","version":"3.0"},"exploitabilityScore":2.8,"impactScore":4.0,"source":"psirt@cisco.com","type":"Secondary"}],"cvssMetricV31":[{"cvssData":{"attackComplexity":"LOW","attackVector":"ADJACENT_NETWORK","availabilityImpact":"HIGH","baseScore":7.4,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","version":"3.1"},"exploitabilityScore":2.8,"impactScore":4.0,"source":"nvd@nist.gov","type":"Primary"}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"id":"CVE-2020-3511","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","timestamp":"2024-11-13T17:23:34.355395Z","version":"2.0.3"}}]},"published":"2020-09-24T18:15:21.230","references":[{"source":"psirt@cisco.com","tags":["Vendor Advisory"],"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-isdn-q931-dos-67eUZBTf"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"],"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-isdn-q931-dos-67eUZBTf"}],"sourceIdentifier":"psirt@cisco.com","vulnStatus":"Modified","weaknesses":[{"description":[{"lang":"en","value":"CWE-20"}],"source":"psirt@cisco.com","type":"Secondary"},{"description":[{"lang":"en","value":"CWE-20"}],"source":"nvd@nist.gov","type":"Primary"}]}
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