Totolink WA300 Buffer Overflow Vulnerability in POST Request Handler

Vulnerability

A buffer overflow vulnerability has been identified in the Totolink WA300 router, specifically in the version 5.2cu.7112_B20190227. The issue arises in the POST request handler, within the 'loginauth' function of the '/cgi-bin/cstecgi.cgi' file. The vulnerability can be exploited remotely by manipulating the 'http_host' argument.

Impact

Exploitation of this vulnerability leads to a buffer overflow, which can commonly result in arbitrary code execution or causing the device to crash.

Added: May 4, 2026, 2:22 AM
Updated: May 4, 2026, 2:22 AM

Vulnerability Rating

Custom Algorithm
spread
0.0
impact
0.6
exploitability
8.7
remediation
0.0
relevance
7.1
threat
6.4
urgency
2.9
incentive
4.2

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.