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, specifically in the /userRpm/WlanNetworkRpm.htm file. This vulnerability arises from inadequate input parameter validation, potentially causing the web service to crash and create a denial-of-service condition. The issue can be exploited remotely and affects products that are no longer supported by the manufacturer.

Impact

Exploitation of this vulnerability causes the HTTP service to crash, disrupting normal operations. While the service can be restored after a reboot, this interruption may impact users relying on the router's web interface.

Remediation

Users are advised to upgrade to a supported TP-Link model to receive automatic updates and ongoing protection. Instructions for selecting a new model can be found on the TP-Link website.