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.
CVSS 4.9EPSS 0.392%Risque 0.51
Voir la source- Publication
- 2026-08-24 18:17:06
- Versions concernées
- unknown
- Type
- Micrologiciel
- Dernière modification
- 2026-08-26 17:08:22
- Vecteur
- CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H