CVE-2025-29047: Remote Execution Buffer Overflow Vulnerability in ALFA WiFi CampPro Router

Overview

The cybersecurity landscape is riddled with vulnerabilities, and one such example that has recently come to light is the CVE-2025-29047 vulnerability. This critical flaw resides in the ALFA WiFi CampPro router, specifically within the ALFA_CAMPRO-co-2.29 software. This vulnerability allows a nefarious remote attacker to execute arbitrary code which can potentially compromise the system or lead to significant data leakage. Given the severity of this vulnerability, it is of paramount importance that all users of the affected product promptly apply the necessary patches or mitigations to prevent exploitation.

Vulnerability Summary

CVE ID: CVE-2025-29047
Severity: Critical (9.8 CVSS Score)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: System Compromise and Data leakage

Affected Products

Product | Affected Versions

ALFA WiFi CampPro router | ALFA_CAMPRO-co-2.29

How the Exploit Works

This exploit takes advantage of a buffer overflow vulnerability in the ‘StorageEditUser’ function in the ALFA WiFi CampPro router. An attacker can remotely manipulate the ‘hiddenIndex’ parameter to cause an overflow in the router’s memory buffer. Given that this overflow condition is not properly handled by the router’s software, it can lead to unexpected behavior including the execution of arbitrary code by the attacker.

Conceptual Example Code

Here’s an illustrative example of how an attacker might exploit this vulnerability. This is a conceptual HTTP request that sends a malicious payload to the ‘StorageEditUser’ function:

POST /StorageEditUser HTTP/1.1
Host: target.example.com
Content-Type: application/json
{
"hiddenIndex": "ABCDEFGHIJKLMNOPQRSTUVWXYZ............"
}

In this example, the ‘hiddenIndex’ parameter is filled with a large number of characters (represented by dots) that cause the buffer overflow. The string ‘ABCDEFGHIJKLMNOPQRSTUVWXYZ’ could be replaced with any string that is sufficiently long to cause an overflow, potentially including exploit code.

Mitigation

Users are advised to apply the latest patch provided by the vendor to fix this vulnerability. If a patch is not yet available or cannot be applied immediately, using a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can offer temporary mitigation. These systems can potentially identify and block attempts to exploit this vulnerability. However, they should not be considered a long-term solution, as they do not remove the underlying vulnerability.