TP-Link TL-WR841N V11 Buffer Overflow Vulnerability Leading to Denial-of-Service

A buffer overflow vulnerability has been identified in the TP-Link TL-WR841N V11 router. This issue arises from inadequate input parameter validation in the '/userRpm/Wan6to4TunnelCfgRpm.htm' file. The vulnerability can be exploited remotely, causing the web service to crash and creating a denial-of-service condition. The issue affects products that are no longer supported by the manufacturer.

Impact

Exploitation of this vulnerability causes the HTTP service to crash, leading to a denial-of-service condition. The service can be restored by rebooting the device.

Remediation

Users are advised to upgrade to a supported TP-Link model to receive automatic updates and ongoing protection.