{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-08-01T06:57:15.445","vulnerabilities":[{"cve":{"id":"CVE-2018-0173","sourceIdentifier":"psirt@cisco.com","published":"2018-03-28T22:29:01.170","lastModified":"2026-06-17T01:30:00.043","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"A vulnerability in the Cisco IOS Software and Cisco IOS XE Software function that restores encapsulated option 82 information in DHCP Version 4 (DHCPv4) packets could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a Relay Reply denial of service (DoS) condition. The vulnerability exists because the affected software performs incomplete input validation of encapsulated option 82 information that it receives in DHCPOFFER messages from DHCPv4 servers. An attacker could exploit this vulnerability by sending a crafted DHCPv4 packet to an affected device, which the device would then forward to a DHCPv4 server. When the affected software processes the option 82 information that is encapsulated in the response from the server, an error could occur. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. Cisco Bug IDs: CSCvg62754."},{"lang":"es","value":"Una vulnerabilidad en la función de Cisco IOS Software y Cisco IOS XE Software que restaura la información de la opción 82 encapsulada en paquetes DHCPv4 (DHCP Version 4) podría permitir que un atacante remoto no autenticado provoque que un dispositivo afectado se recargue. Esto resulta en una condición de denegación de servicio (DoS) por Relay Reply. La vulnerabilidad existe debido a que el software afectado realiza validación incompleta de entradas de la información encapsulada de la opción 82 que recibe en los mensajes DHCPOFFER de los servidores DHCPv4. Un atacante podría explotar esta vulnerabilidad enviando un paquete DHCPv4 manipulado a un dispositivo afectado, que el dispositivo reenviaría posteriormente a un servidor DHCPv4. Cuando el software afectado procesa la información de la opción 82 que está encapsulada en la respuesta del servidor, podría ocurrir un error. Si se explota con éxito, podría permitir que el atacante consiga que el dispositivo afectado se reinicie, provocando una denegación de servicio. Cisco Bug IDs: CSCvg62754."}],"affected":[{"source":"psirt@cisco.com","affectedData":[{"vendor":"n/a","product":"Cisco IOS and IOS XE","versions":[{"version":"Cisco IOS and IOS 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