Totolink WA300 Buffer Overflow Vulnerability in POST Request Handler
Vulnerability
A buffer overflow vulnerability has been identified in the Totolink WA300 router, specifically in version 5.2cu.7112_B20190227. The issue arises in the UploadCustomModule function within the POST request handler file cstecgi.cgi. This vulnerability can be exploited remotely by manipulating the File argument, leading to potential arbitrary code execution.
Impact
Exploitation of this vulnerability causes a buffer overflow, which can often lead to arbitrary code execution or causing the device to crash.
Added: May 4, 2026, 1:17 AM
Updated: May 4, 2026, 1:17 AM
Vulnerability Rating
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spread
0.0impact
0.6exploitability
8.7remediation
0.0relevance
7.4threat
6.4urgency
2.9incentive
4.2Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.