EUVD-2025-15971

Comprehensive Technical Analysis of EUVD-2025-15971

1. Vulnerability Assessment and Severity Evaluation

The vulnerability described in EUVD-2025-15971 is a command injection flaw in the /cgi-bin/firewall.cgi component of the Wavlink WL-WN579A3 v1.0 device. This vulnerability allows attackers to execute arbitrary commands by crafting specific inputs. The severity of this vulnerability is rated with a CVSS Base Score of 9.8, which is considered critical. The CVSS vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H indicates the following:

• Attack Vector (AV): Network (N) - The vulnerability is exploitable over the network.
• Attack Complexity (AC): Low (L) - The attack requires minimal skill or resources.
• Privileges Required (PR): None (N) - No special privileges are needed to exploit the vulnerability.
• User Interaction (UI): None (N) - No user interaction is required for the attack to succeed.
• Scope (S): Unchanged (U) - The vulnerability does not affect resources beyond the security scope managed by the security authority.
• Confidentiality (C): High (H) - The vulnerability can result in a complete loss of confidentiality.
• Integrity (I): High (H) - The vulnerability can result in a complete loss of integrity.
• Availability (A): High (H) - The vulnerability can result in a complete loss of availability.

2. Potential Attack Vectors and Exploitation Methods

The primary attack vector for this vulnerability is through network-based exploitation. An attacker can send crafted HTTP requests to the /cgi-bin/firewall.cgi endpoint, injecting malicious commands that the device will execute. Potential exploitation methods include:

• Remote Command Execution (RCE): By injecting commands into the input parameters, an attacker can execute arbitrary commands on the device.
• Privilege Escalation: If the firewall.cgi script runs with elevated privileges, an attacker could gain higher-level access to the device.
• Data Exfiltration: An attacker could use the vulnerability to exfiltrate sensitive data from the device.
• Denial of Service (DoS): An attacker could execute commands that disrupt the normal operation of the device, leading to a DoS condition.

3. Affected Systems and Software Versions

The vulnerability specifically affects the Wavlink WL-WN579A3 device running firmware version v1.0. It is crucial to note that other versions of the firmware or similar devices from Wavlink might also be affected if they share the same vulnerable component.

4. Recommended Mitigation Strategies

To mitigate the risk associated with this vulnerability, the following strategies are recommended:

• Firmware Update: Immediately update the firmware of the Wavlink WL-WN579A3 device to a version that addresses this vulnerability.
• Network Segmentation: Isolate the device on a separate network segment to limit potential attack vectors.
• Input Validation: Implement strict input validation and sanitization for all user inputs to prevent command injection.
• Access Control: Restrict access to the device's management interface to trusted IP addresses and use strong authentication mechanisms.
• Monitoring and Logging: Enable comprehensive logging and monitoring to detect and respond to any suspicious activities.

5. Impact on European Cybersecurity Landscape

The presence of this vulnerability in a widely used device like the Wavlink WL-WN579A3 poses a significant risk to the European cybersecurity landscape. Given the critical nature of the vulnerability, it could be exploited to compromise network security, exfiltrate sensitive data, and disrupt critical infrastructure. Organizations and individuals using this device should prioritize mitigation efforts to protect against potential attacks.

6. Technical Details for Security Professionals

For security professionals, the following technical details are pertinent:

• Vulnerable Component: /cgi-bin/firewall.cgi
• Exploitation Method: Crafted HTTP requests with injected commands.
• Detection: Monitor network traffic for unusual patterns or commands being executed on the device.
• Response: Implement incident response plans to quickly identify and mitigate any exploitation attempts.
• Patching: Ensure that all devices are updated to the latest firmware version provided by the vendor.

Conclusion

The command injection vulnerability in the Wavlink WL-WN579A3 v1.0 device is a critical issue that requires immediate attention. By understanding the attack vectors, affected systems, and mitigation strategies, cybersecurity professionals can effectively protect against potential exploitation and maintain the integrity of their networks.

References

• NVD Entry
• Technical Analysis

Aliases

• CVE-2025-44882
• GHSA-4wqv-9447-79rg