{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-19T21:07:08.876","vulnerabilities":[{"cve":{"id":"CVE-2026-20040","sourceIdentifier":"psirt@cisco.com","published":"2026-03-11T17:16:54.747","lastModified":"2026-03-12T21:08:22.643","vulnStatus":"Awaiting Analysis","cveTags":[],"descriptions":[{"lang":"en","value":"A vulnerability in the CLI of Cisco IOS XR Software could allow an authenticated, local attacker to execute arbitrary commands as root on the underlying operating system of an affected device.\r\n\r\nThis vulnerability is due to insufficient validation of user arguments that are passed to specific CLI commands. An attacker with a low-privileged account could exploit this vulnerability by using crafted commands at the prompt. A successful exploit could allow the attacker to elevate privileges to root and execute arbitrary commands on the underlying operating system."},{"lang":"es","value":"Una vulnerabilidad en la CLI de Cisco IOS XR Software podría permitir a un atacante autenticado y local ejecutar comandos arbitrarios como root en el sistema operativo subyacente de un dispositivo afectado.\n\nEsta vulnerabilidad se debe a una validación insuficiente de los argumentos de usuario que se pasan a comandos específicos de la CLI. Un atacante con una cuenta de bajo privilegio podría explotar esta vulnerabilidad utilizando comandos manipulados en el indicador. Un exploit exitoso podría permitir al atacante elevar los privilegios a root y ejecutar comandos arbitrarios en el sistema operativo subyacente."}],"metrics":{"cvssMetricV31":[{"source":"psirt@cisco.com","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","baseScore":8.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":2.0,"impactScore":6.0}]},"weaknesses":[{"source":"psirt@cisco.com","type":"Primary","description":[{"lang":"en","value":"CWE-78"}]}],"references":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-privesc-bF8D5U4W","source":"psirt@cisco.com"}]}}]}