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TOTOLINK EX1200T Stack-Based Buffer Overflow Vulnerability

Vulnerability

A critical stack-based buffer overflow vulnerability has been identified in the TOTOLINK EX1200T router, specifically in the firmware version 4.1.2cu.5232_B20210713. The vulnerability resides in the 'setLanguageCfg' function of the '/cgi-bin/cstecgi.cgi' file, where improper handling of the 'LangType' parameter allows for remote exploitation.

Impact

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

Added: Sep 1, 2025, 7:22 PM
Updated: Sep 1, 2025, 7:22 PM

Vulnerability Rating

Custom Algorithm
spread
0.3
impact
7.5
exploitability
8.4
remediation
0.0
relevance
0.0
threat
6.4
urgency
2.9
incentive
5.0

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