Description
A vulnerability has been found in Tenda WH450 1.0.0.18. The impacted element is an unknown function of the file /goform/PPTPClient of the component HTTP Request Handler. Such manipulation of the argument netmsk leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.
EPSS Score:
0%
Comprehensive Technical Analysis of EUVD-2025-204979
1. Vulnerability Assessment and Severity Evaluation
The vulnerability EUVD-2025-204979 affects the Tenda WH450 router, specifically version 1.0.0.18. The issue resides in the HTTP Request Handler component, particularly within the /goform/PPTPClient file. The vulnerability is a stack-based buffer overflow triggered by manipulating the netmsk argument. This vulnerability has a high severity score of 9.3 according to CVSS 4.0, indicating a critical risk.
CVSS 4.0 Vector Breakdown:
- AV:N (Attack Vector: Network) - The vulnerability can be exploited remotely over the network.
- AC:L (Attack Complexity: Low) - The attack requires low complexity to exploit.
- AT:N (Attack Technique: Network) - The attack technique involves network-based methods.
- PR:N (Privileges Required: None) - No privileges are required to exploit the vulnerability.
- UI:N (User Interaction: None) - No user interaction is required.
- VC:H (Vulnerability Consequence: High) - The impact on confidentiality is high.
- VI:H (Vulnerability Impact: High) - The impact on integrity is high.
- VA:H (Vulnerability Availability: High) - The impact on availability is high.
- SC:N (Scope Change: None) - The scope of the vulnerability does not change.
- SI:N (Secondary Impact: None) - There is no secondary impact.
- SA:N (Secondary Availability: None) - There is no secondary availability impact.
- E:P (Exploit Code Maturity: Proof-of-Concept) - Proof-of-concept code is available.
2. Potential Attack Vectors and Exploitation Methods
The primary attack vector is remote exploitation via the network. An attacker can send a specially crafted HTTP request to the vulnerable component, causing a stack-based buffer overflow. This can lead to arbitrary code execution, denial of service, or other malicious activities.
Exploitation Methods:
- Remote Code Execution (RCE): By exploiting the buffer overflow, an attacker can execute arbitrary code on the affected device.
- Denial of Service (DoS): The buffer overflow can cause the device to crash, leading to a denial of service.
- Data Exfiltration: The attacker can potentially exfiltrate sensitive data from the device.
3. Affected Systems and Software Versions
The vulnerability specifically affects:
- Product: Tenda WH450
- Version: 1.0.0.18
Other versions of the Tenda WH450 and similar devices from Tenda may also be affected, but this has not been confirmed.
4. Recommended Mitigation Strategies
Immediate Actions:
- Patch Management: Apply the latest firmware updates provided by Tenda as soon as they are available.
- Network Segmentation: Isolate the affected devices from critical networks to limit potential damage.
- Firewall Rules: Implement strict firewall rules to block unauthorized access to the device.
- Intrusion Detection Systems (IDS): Deploy IDS to monitor for suspicious network activity targeting the vulnerable component.
Long-Term Strategies:
- Regular Audits: Conduct regular security audits and vulnerability assessments.
- User Education: Educate users on the importance of keeping firmware up to date and recognizing phishing attempts.
- Vendor Communication: Maintain open communication with Tenda for updates and patches.
5. Impact on European Cybersecurity Landscape
The vulnerability poses a significant risk to European organizations and individuals using the Tenda WH450 router. Given the widespread use of routers in both home and business environments, the potential for large-scale exploitation is high. This could lead to data breaches, service disruptions, and other cybersecurity incidents.
Regulatory Implications:
- GDPR Compliance: Organizations must ensure they comply with GDPR regulations, especially in terms of data protection and breach reporting.
- Cybersecurity Directives: Adherence to EU cybersecurity directives and guidelines is crucial to mitigate risks.
6. Technical Details for Security Professionals
Vulnerability Details:
- Component: HTTP Request Handler
- File:
/goform/PPTPClient - Function: Unknown function
- Argument:
netmsk - Impact: Stack-based buffer overflow
Proof-of-Concept (PoC):
- The PoC code is available on GitHub, which demonstrates how to reproduce the vulnerability. Security professionals can use this to understand the exploit and develop countermeasures.
References:
Aliases:
- CVE-2025-15046
Assigner:
- VulDB
EPSS:
- Not Available
ENISA IDs:
- Product: WH450 (ID: dc26f14c-8670-3bc1-9414-a87577a4a42e)
- Vendor: Tenda (ID: 3f6d922e-a6e9-3538-826a-8f652c293858)
By addressing this vulnerability promptly and effectively, organizations can significantly reduce the risk of cyber attacks and ensure the security of their networks.