CVE-2025-8180: Critical Buffer Overflow Vulnerability in Tenda CH22 1.0.0.1

Overview

A critical vulnerability, identified as CVE-2025-8180, has been found in the Tenda CH22 1.0.0.1. This vulnerability targets the formdeleteUserName function of the file /goform/deleteUserName via the manipulation of the argument old_account, leading to a buffer overflow condition. This issue is especially troubling as it allows for remote attacks, potentially leading to system compromise or data leakage. The exploit has already been publicly disclosed and may be in active use, making it a significant threat to any individual or organization using the affected version of the software.

Vulnerability Summary

CVE ID: CVE-2025-8180
Severity: Critical (CVSS: 8.8)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: System compromise, potential data leakage

Affected Products

Product | Affected Versions

Tenda CH22 | 1.0.0.1

How the Exploit Works

The vulnerability occurs due to inadequate input validation in the formdeleteUserName function of the /goform/deleteUserName file. This allows an attacker to manipulate the old_account argument, creating a buffer overflow condition. This condition can allow the attacker to execute arbitrary code on the system, which could potentially compromise the system or lead to unauthorized access to sensitive data.

Conceptual Example Code

In a real-world example, an attacker might use a POST request to target the vulnerability. The malicious request might look something like this:

POST /goform/deleteUserName HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
old_account=<buffer_overflow_payload>

In this example, `` represents a string of data designed to trigger the buffer overflow condition. This payload would be carefully crafted by the attacker to exploit the buffer overflow vulnerability, potentially allowing the attacker to execute arbitrary code on the system.

Mitigation Guidance

The best course of action for mitigating this vulnerability is to apply the vendor patch as soon as it becomes available. If applying the patch isn’t immediately possible, implementing a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can offer a temporary solution to mitigate the risk posed by this vulnerability. It is also advisable to always be vigilant about the security of the system by regularly updating and patching the software.