Overview
Totolink X15, a widely used networking device, has been found to have a critical vulnerability, identified as CVE-2025-5738. This vulnerability allows potential hackers to remotely create a buffer overflow within the system, leading to possible system compromise, data leakage, or even total system control. Given the broad usage of Totolink products, this vulnerability poses a significant risk to users worldwide, making it a pressing issue that needs immediate attention.
Vulnerability Summary
CVE ID: CVE-2025-5738
Severity: Critical (CVSS: 8.8)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage
Affected Products
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Product | Affected Versions
TOTOLINK X15 | 1.0.0-B20230714.1105
How the Exploit Works
The vulnerability lies in the HTTP POST Request Handler component. More specifically, an unknown function of the file /boafrm/formStats. Attackers can manipulate the “submit-url” argument in a way that leads to buffer overflow. This buffer overflow can cause unpredictable behavior, leading to potential system compromise or data leakage. The exploit does not require user interaction and can be launched remotely, making it a highly potent threat.
Conceptual Example Code
Here’s a conceptual example of how a malicious HTTP POST request might look:
POST /boafrm/formStats HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
submit-url=<malicious_payload>In this example, `
Mitigation Guidance
Users of the affected TOTOLINK X15 version are strongly advised to apply the vendor-supplied patch as soon as possible. If immediate patching is not possible, setting up a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation, but these should not be seen as long-term solutions. Regular system checks for any signs of compromise should also be conducted as a precautionary measure.