{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-06-11T12:11:35.691","vulnerabilities":[{"cve":{"id":"CVE-2025-20135","sourceIdentifier":"psirt@cisco.com","published":"2025-08-14T17:15:34.827","lastModified":"2026-04-15T00:35:42.020","vulnStatus":"Deferred","cveTags":[],"descriptions":[{"lang":"en","value":"A vulnerability in the DHCP client functionality of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, adjacent attacker to exhaust available memory.\r\n\r\nThis vulnerability is due to improper validation of incoming DHCP packets. An attacker could exploit this vulnerability by repeatedly sending crafted DHCPv4 packets to an affected device. A successful exploit could allow the attacker to exhaust available memory, which would affect availability of services and prevent new processes from starting, resulting in a Denial of Service (DoS) condition that would require a manual reboot.\r\nNote: On Cisco Secure FTD Software, this vulnerability does not affect management interfaces."},{"lang":"es","value":"Una vulnerabilidad en la funcionalidad del cliente DHCP del software Cisco Secure Firewall Adaptive Security Appliance (ASA) y del software Cisco Secure Firewall Threat Defense (FTD) podría permitir que un atacante adyacente no autenticado agote la memoria disponible. Esta vulnerabilidad se debe a una validación incorrecta de los paquetes DHCP entrantes. Un atacante podría explotar esta vulnerabilidad enviando repetidamente paquetes DHCPv4 manipulados a un dispositivo afectado. Una explotación exitosa podría permitir que el atacante agote la memoria disponible, lo que afectaría la disponibilidad de los servicios e impediría el inicio de nuevos procesos, lo que provocaría una denegación de servicio (DoS) que requeriría un reinicio manual. Nota: En el software Cisco Secure FTD, esta vulnerabilidad no afecta a las interfaces de administración."}],"metrics":{"cvssMetricV31":[{"source":"psirt@cisco.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","baseScore":4.3,"baseSeverity":"MEDIUM","attackVector":"ADJACENT_NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"LOW"},"exploitabilityScore":2.8,"impactScore":1.4}]},"weaknesses":[{"source":"psirt@cisco.com","type":"Secondary","description":[{"lang":"en","value":"CWE-401"}]}],"references":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-dhcp-qj7nGs4N","source":"psirt@cisco.com"}]}}]}