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TOTOLINK A800R Buffer Overflow Vulnerability in downloadFile.cgi

Vulnerability

A buffer overflow vulnerability has been identified in the TOTOLINK A800R router, specifically in the firmware version V4.1.2cu.5137_B20200730. The issue arises within the downloadFile.cgi component, potentially allowing for arbitrary code execution or other malicious actions.

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
2.5
exploitability
7.8
remediation
0.0
relevance
0.0
threat
0.0
urgency
2.9
incentive
10.0

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