{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-14T19:43:55.424","vulnerabilities":[{"cve":{"id":"CVE-2018-0172","sourceIdentifier":"psirt@cisco.com","published":"2018-03-28T22:29:01.110","lastModified":"2026-01-14T18:45:47.877","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"A vulnerability in the DHCP option 82 encapsulation functionality of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability exists because the affected software performs incomplete input validation of option 82 information that it receives in DHCP Version 4 (DHCPv4) packets from DHCP relay agents. An attacker could exploit this vulnerability by sending a crafted DHCPv4 packet to an affected device. A successful exploit could allow the attacker to cause a heap overflow condition on the affected device, which will cause the device to reload and result in a DoS condition. Cisco Bug IDs: CSCvg62730."},{"lang":"es","value":"Una vulnerabilidad en la funcionalidad de encapsulamiento de la opción 82 de DHCP en Cisco IOS Software y Cisco IOS XE Software podría permitir que un atacante remoto sin autenticar haga que el dispositivo afectado se reinicie, provocando una denegación de servicio (DoS) en consecuencia. La vulnerabilidad existe debido a que el software afectado realiza validación incompleta de entradas de la información de la opción 82 que recibe en los paquetes DHCPv4 (DHCP Version 4) de los agentes de reproducción DHCP. Un atacante podría explotar esta vulnerabilidad enviando un paquete DHCPv4 manipulado a un dispositivo afectado. Si se explota con éxito, esta vulnerabilidad podría permitir que el atacante provoque una condición de desbordamiento de memoria dinámica (heap) en el dispositivo afectado, lo que provocará que el dispositivo se recargue y desemboque en una condición de denegación de servicio (DoS). Cisco Bug IDs: CSCvg62730."}],"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},{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","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}],"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}]},"cisaExploitAdd":"2022-03-03","cisaActionDue":"2022-03-17","cisaRequiredAction":"Apply 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