CVE-2025-20162

{"id": "CVE-2025-20162", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "psirt@cisco.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 8.6, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 4.0, "exploitabilityScore": 3.9}]}, "published": "2025-05-07T18:15:37.663", "references": [{"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-dhcpsn-dos-xBn8Mtks", "source": "psirt@cisco.com"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Primary", "source": "psirt@cisco.com", "description": [{"lang": "en", "value": "CWE-400"}]}], "descriptions": [{"lang": "en", "value": "A vulnerability in the DHCP snooping security feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a full interface queue wedge, which could result in a denial of service (DoS) condition.\r\n\r This vulnerability is due to improper handling of DHCP request packets. An attacker could exploit this vulnerability by sending DHCP request packets to an affected device. A successful exploit could allow the attacker to cause packets to wedge in the queue, creating a DoS condition for downstream devices of the affected system and requiring that the system restart to drain the queue.\r\n\r Note: This vulnerability can be exploited with either unicast or broadcast DHCP packets on a VLAN that does not have DHCP snooping enabled."}, {"lang": "es", "value": "Una vulnerabilidad en la funci\u00f3n de seguridad de vigilancia DHCP del software Cisco IOS XE podr\u00eda permitir que un atacante remoto no autenticado provoque una cu\u00f1a de cola de interfaz completa, lo que podr\u00eda resultar en una denegaci\u00f3n de servicio (DoS). Esta vulnerabilidad se debe a la gesti\u00f3n incorrecta de los paquetes de solicitud DHCP. Un atacante podr\u00eda explotar esta vulnerabilidad enviando paquetes de solicitud DHCP a un dispositivo afectado. Una explotaci\u00f3n exitosa podr\u00eda permitir al atacante provocar una cu\u00f1a de paquetes en la cola, creando una condici\u00f3n de DoS para los dispositivos posteriores del sistema afectado y requiriendo que el sistema se reinicie para vaciar la cola. Nota: Esta vulnerabilidad puede explotarse con paquetes DHCP de unidifusi\u00f3n o difusi\u00f3n en una VLAN que no tenga activada la vigilancia DHCP."}], "lastModified": "2025-05-08T14:39:09.683", "sourceIdentifier": "psirt@cisco.com"}