Severe Wing FTP Server Vulnerability (CVE-2025-47812) Actively Exploited: Critical Updates

TL;DR

• A critical security flaw (CVE-2025-47812) in Wing FTP Server allows remote code execution.
• The vulnerability is being actively exploited; users should update to version 7.4.4 immediately.

Critical Wing FTP Server Vulnerability Actively Exploited

A recently disclosed security flaw in Wing FTP Server has been identified and is currently under active exploitation¹. This vulnerability, tracked as CVE-2025-47812, holds a maximum severity score of 10.0 on the CVSS scale. The issue arises from improper handling of null (‘\0’) bytes in the server’s web interface, enabling remote code execution.

Vulnerability Details

According to Huntress, the flaw was addressed in Wing FTP Server version 7.4.4. The vulnerability, categorized as a case of improper handling of null bytes, allows attackers to execute malicious code remotely. This poses a significant risk to organizations using Wing FTP Server, particularly those managing sensitive data.

Mitigation Measures

Users are strongly advised to update to the latest version of Wing FTP Server (7.4.4) to mitigate this risk. Failure to do so could result in severe security breaches, including data theft and system compromise.

Implications and Recommendations

The active exploitation of this vulnerability underscores the importance of timely updates and vigilant security practices. Organizations should:

• Update Immediately: Ensure all instances of Wing FTP Server are updated to version 7.4.4.
• Monitor for Suspicious Activity: Regularly monitor server logs for any unusual activities.
• Implement Strong Security Protocols: Use firewalls, intrusion detection systems, and other security measures to protect against potential attacks.

Conclusion

The critical Wing FTP Server vulnerability (CVE-2025-47812) highlights the ongoing need for robust cybersecurity measures. Regular updates, proactive monitoring, and adherence to best practices are essential in defending against such threats. Organizations must remain vigilant to protect their systems and data from evolving cyber risks.

Additional Resources

For further insights, check:

• The Hacker News Article

References

1. The Hacker News (July 11, 2025). “Critical Wing FTP Server Vulnerability Actively Exploited”. The Hacker News. Retrieved July 11, 2025. ↩︎