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TOTOLINK A3002R and A3002RU Buffer Overflow Vulnerability in HTTP POST Request Handler

Vulnerability

A critical buffer overflow vulnerability has been identified in TOTOLINK A3002R and A3002RU routers running firmware version 3.0.0-B20230809.1615. The issue arises in the HTTP POST request handler, specifically within the file '/boafrm/formPortFw'. The vulnerability can be exploited remotely by manipulating the 'service_type' or 'ip_subnet' arguments.

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
2.6
impact
2.5
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.