Overview
A critical vulnerability, identified as CVE-2025-7532, has been discovered in Tenda FH1202 1.2.0.14(408). This vulnerability affects a crucial function within the device’s firmware potentially compromising system security and leading to data leakage. Given the severity of the vulnerability, it has been rated as critical and holds a high CVSS score of 8.8. This vulnerability poses a significant risk to individuals or organizations using the affected Tenda product, as it can lead to unauthorized access, system compromise, and data leakage.
Vulnerability Summary
CVE ID: CVE-2025-7532
Severity: Critical (CVSS: 8.8)
Attack Vector: Remote
Privileges Required: None
User Interaction: None
Impact: Potential system compromise and data leakage
Affected Products
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Product | Affected Versions
Tenda FH1202 | 1.2.0.14(408)
How the Exploit Works
The vulnerability lies within the function fromwebExcptypemanFilter of the file /goform/webExcptypemanFilter. It is a stack-based buffer overflow vulnerability that can be exploited by manipulating the ‘page’ argument. An attacker can initiate the attack remotely by sending a specially crafted request to the vulnerable function. If successful, this can lead to arbitrary code execution, allowing the attacker to gain unauthorized access to the system and potentially lead to data leakage.
Conceptual Example Code
Here is a conceptual example of how the vulnerability might be exploited. This is not a real exploit code, but a representation of how an attacker might craft a malicious request to exploit the vulnerability.
GET /goform/webExcptypemanFilter?page= [insert malicious payload here] HTTP/1.1
Host: target.example.comMitigation Guidance
Until a patch is available from the vendor, it is recommended to use a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) as a temporary mitigation measure. Both these systems can help detect and prevent the exploitation of the vulnerability by monitoring network traffic and blocking suspicious activities. However, these are temporary solutions and can only minimize the risk, not eliminate it entirely. Therefore, it is crucial to apply the vendor-provided patch as soon as it becomes available.