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Totolink EX1800T Buffer Overflow Vulnerability in Login Authentication

Vulnerability

A critical buffer overflow vulnerability has been identified in the Totolink EX1800T router, specifically in version 9.1.0cu.2112_B20220316. The issue arises in the loginAuth function of the file /cgi-bin/cstecgi.cgi, where improper handling of the password argument creates the potential for remote exploitation.

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: Jun 9, 2025, 7:46 PM
Updated: Jun 9, 2025, 7:46 PM

Vulnerability Rating

Custom Algorithm
spread
0.3
impact
7.5
exploitability
4.9
remediation
0.0
relevance
0.0
threat
0.0
urgency
2.9
incentive
0.8

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