CVE-2025-29041: Remote Code Execution Vulnerability in Dlink DIR 832x 240802

Overview

The cybersecurity landscape is witnessing a significant upsurge in remote code execution vulnerabilities. One such vulnerability of high severity has been identified in dlink DIR 832x 240802, commonly referred to as CVE-2025-29041. This vulnerability has grave implications for organizations that utilize this product, as it permits an attacker to remotely execute arbitrary code, potentially leading to system compromise or data leakage.
The importance of understanding and mitigating this vulnerability cannot be overstated. With a CVSS Severity Score of 9.8, it poses a colossal threat to data confidentiality, integrity, and availability – the three pillars of information security.

Vulnerability Summary

CVE ID: CVE-2025-29041
Severity: Critical (CVSS: 9.8)
Attack Vector: Remote
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

dlink DIR 832x | 240802

How the Exploit Works

CVE-2025-29041 leverages a flaw in the handling of the ‘target_addr’ key value within the dlink DIR 832x 240802. An attacker can manipulate this value to force the execution of arbitrary code at the function 0x41710c. Given that the attack vector is remote, the attacker can launch this attack from anywhere across the network, without any user interaction or special privileges.

Conceptual Example Code

An indicative example of how the vulnerability might be exploited can be visualized with the following pseudocode:

POST /target_addr/function HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "target_addr": "0x41710c", "code": "malicious_code_here" }

In this example, the attacker sends a POST request to the target_addr endpoint with a malicious code embedded in the JSON payload. The server, upon receiving the request, executes the malicious code at the function 0x41710c.

Mitigation Guidance

To protect against this vulnerability, users are strongly advised 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 serve as a temporary mitigation method. These systems can help detect and block malicious attempts to exploit this vulnerability.
Understanding and addressing vulnerabilities such as CVE-2025-29041 is crucial in maintaining a robust cybersecurity posture. It is recommended to regularly conduct vulnerability assessments and apply patches promptly to mitigate potential risks.