CVE-2025-14665

Comprehensive Technical Analysis of CVE-2025-14665

1. Vulnerability Assessment and Severity Evaluation

CVE ID: CVE-2025-14665 CVSS Score: 9.8

The vulnerability in question is a stack-based buffer overflow in the Tenda WH450 1.0.0.18 firmware, specifically within the HTTP Request Handler component. The flaw is located in the /goform/DhcpListClient file and is triggered by manipulating the page argument. Given the CVSS score of 9.8, this vulnerability is considered critical. The high score is due to the potential for remote exploitation, the availability of a public exploit, and the severe impact it can have on affected systems.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Remote Exploitation: The vulnerability can be exploited remotely, meaning an attacker does not need physical access to the device.
• Network-Based Attack: Since the flaw resides in the HTTP Request Handler, it can be triggered via crafted HTTP requests.

Exploitation Methods:

• Buffer Overflow: By sending a specially crafted HTTP request with a manipulated page argument, an attacker can cause a stack-based buffer overflow.
• Code Execution: The buffer overflow can potentially lead to arbitrary code execution, allowing the attacker to gain control over the device.

3. Affected Systems and Software Versions

Affected Systems:

• Tenda WH450 devices running firmware version 1.0.0.18.

Software Versions:

• The vulnerability specifically affects Tenda WH450 firmware version 1.0.0.18. Other versions may also be affected but have not been explicitly mentioned.

4. Recommended Mitigation Strategies

Immediate Actions:

• Firmware Update: Users should immediately update their Tenda WH450 devices to the latest firmware version if available.
• Network Segmentation: Isolate affected devices from critical networks to limit potential damage.
• Firewall Rules: Implement strict firewall rules to block unauthorized access to the device's web interface.

Long-Term Strategies:

• Regular Patching: Ensure that all devices are regularly updated with the latest security patches.
• Intrusion Detection Systems (IDS): Deploy IDS to monitor for suspicious activity and potential exploitation attempts.
• Security Audits: Conduct regular security audits and vulnerability assessments to identify and mitigate similar issues.

5. Impact on Cybersecurity Landscape

The discovery and public disclosure of this vulnerability highlight the ongoing challenges in securing IoT devices. The critical nature of the flaw and its potential for remote exploitation underscore the need for robust security practices in device manufacturing and firmware development. The availability of a public exploit increases the risk of widespread attacks, making it imperative for organizations to prioritize patch management and network security.

6. Technical Details for Security Professionals

Vulnerability Details:

• Component: HTTP Request Handler
• File: /goform/DhcpListClient
• Argument: page
• Type: Stack-based buffer overflow

Exploit Availability:

• The exploit has been publicly disclosed and is available on GitHub. Security professionals should review the proof-of-concept (PoC) code to understand the attack methodology and develop appropriate defenses.

References:

• GitHub PoC
• GitHub Reproduce
• VulDB Entry
• VulDB ID
• VulDB Submit
• Tenda Official Website

Conclusion: CVE-2025-14665 represents a significant risk to organizations using Tenda WH450 devices. Immediate action is required to mitigate the vulnerability and protect against potential attacks. Security professionals should prioritize firmware updates, network segmentation, and continuous monitoring to safeguard their environments.