Overview
The cybersecurity world is constantly evolving, and with that comes the advent of new vulnerabilities, one of which is the CVE-2025-44899. This vulnerability has been identified in the Tenda RX3 V1.0br_V16.03.13.11, a popular router used by both individuals and businesses. It is a stack overflow vulnerability, which can be extremely dangerous as they can lead to arbitrary code execution or even a complete system compromise. The vulnerability lies within the fromSetWifiGusetBasic function of the web url /goform/ WifiGuestSet and manipulating the parameter shareSpeed results in a stack overflow.
Vulnerability Summary
CVE ID: CVE-2025-44899
Severity: Critical (9.8 CVSS Severity Score)
Attack Vector: Network
Privileges Required: Low
User Interaction: None
Impact: Potential system compromise or data leakage
Affected Products
Escape the Surveillance Era
Most apps won’t tell you the truth.
They’re part of the problem.
Phone numbers. Emails. Profiles. Logs.
It’s all fuel for surveillance.
Ameeba Chat gives you a way out.
- • No phone number
- • No email
- • No personal info
- • Anonymous aliases
- • End-to-end encrypted
Chat without a trace.
Product | Affected Versions
Tenda | RX3 V1.0br_V16.03.13.11
How the Exploit Works
The exploit works by manipulating the shareSpeed parameter in the fromSetWifiGusetBasic function of the web url /goform/ WifiGuestSet. By injecting a large amount of data, it can cause a stack overflow. This overflow can lead to unpredictable behavior, such as executing arbitrary code, crashing the system, or causing a system compromise.
Conceptual Example Code
Please note that the following is a conceptual example of how the vulnerability might be exploited. Actual exploitation would involve the use of specific tools and techniques.
POST /goform/WifiGuestSet HTTP/1.1
Host: target.example.com
Content-Type: application/json
{
"shareSpeed": "<payload causing stack overflow>"
}This conceptual example shows how an attacker might send a malicious POST request to the vulnerable endpoint, injecting a payload into the shareSpeed parameter to trigger a stack overflow.
Mitigation
The best course of action for this vulnerability is to apply the vendor patch as soon as it becomes available. Until then, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation. These systems can be configured to detect and block attempts to exploit this vulnerability. Regular monitoring and logging of network activity can also aid in the early detection of any exploitation attempts.