{"apiVersion":"1.0","identifier":"CVE-2026-71920","description":"Multiple DrayTek VigorSwitch models contain a null pointer dereference vulnerability in the formlogout function. The vulnerability is caused by missing checks for an empty or absent Cookie header before string handling. A remote attacker can trigger this vulnerability via a crafted request to crash the service and cause a denial of service. Exploitation requires valid administrative credentials for the device-s web management interface.","publishedAt":"2026-08-24T18:17:06","lastModifiedAt":"2026-08-26T17:08:22","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-71920","cvssScore":4.9,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H","epssProbability":0.00392,"riskScore":0.51,"affectedProduct":"DrayTek VigorSwitch","affectedVersions":"unknown","vulnerabilityType":"Firmware","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-71920","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-71920","en":"https://www.redsauce.net/en/cves/CVE-2026-71920","fr":"https://www.redsauce.net/fr/cves/CVE-2026-71920","pt":"https://www.redsauce.net/pt/cves/CVE-2026-71920","de":"https://www.redsauce.net/de/cves/CVE-2026-71920","sk":"https://www.redsauce.net/sk/cves/CVE-2026-71920","el":"https://www.redsauce.net/el/cves/CVE-2026-71920"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-71920"}}