{"apiVersion":"1.0","identifier":"CVE-2026-71931","description":"Multiple DrayTek VigorSwitch models contain a command injection vulnerability in the tftp_upgrade function. The vulnerability is caused by insufficient filtering before the filename field is concatenated into a command. A remote attacker can trigger this vulnerability via crafted input to execute arbitrary commands with root privileges. Exploitation requires valid administrative credentials for the device-s web management interface.","publishedAt":"2026-08-24T18:17:17","lastModifiedAt":"2026-08-27T17:19:48","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-71931","cvssScore":7.2,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","epssProbability":0.02405,"riskScore":0.88,"affectedProduct":"DrayTek VigorSwitch","affectedVersions":"unknown","vulnerabilityType":"Firmware","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-71931","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-71931","en":"https://www.redsauce.net/en/cves/CVE-2026-71931","fr":"https://www.redsauce.net/fr/cves/CVE-2026-71931","pt":"https://www.redsauce.net/pt/cves/CVE-2026-71931","de":"https://www.redsauce.net/de/cves/CVE-2026-71931","sk":"https://www.redsauce.net/sk/cves/CVE-2026-71931","el":"https://www.redsauce.net/el/cves/CVE-2026-71931"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-71931"}}