Version 102: The ongoing exploitation of CVE-2025-31161 is largely overlooked and underreported.

Urgent Security Alert: CVE-2025-31161 Exploited in the Wild

In a concerning development in the cybersecurity landscape, the vulnerability identified as CVE-2025-31161 is currently undergoing active exploitation. This intrinsic flaw lies in the CrushFTP software, impacting various versions from 10.0.0 through 10.8.3, and from 11.0.0 to 11.3.0.

The crux of this vulnerability is an authentication bypass, which could potentially grant attackers access to sensitive files without the need for valid credentials. Depending on specific configurations, this may even allow for full control over the system. Alarmingly, this issue has been confirmed as being actively exploited, yet it has not garnered the attention it rightfully deserves in the cyber community.

To mitigate the risks associated with CVE-2025-31161, it is imperative for users to upgrade their CrushFTP installations to version 10.8.4 or 11.3.1 immediately. For those unable to apply the patch right away, leveraging CrushFTP’s DMZ proxy may offer a temporary safeguard against this vulnerability.

If you are currently utilizing CrushFTP or know individuals who are, it is crucial to verify your software version and implement the necessary updates without delay. The potential for this vulnerability to be integrated into larger ransomware operations poses a significant threat, making proactive measures essential for safeguarding your data and systems. Don’t wait—act now to protect yourself from this emerging threat.

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  1. Security Recommendation for Addressing CVE-2025-31161

    Thank you for bringing this critical vulnerability to our attention. Given the active exploitation of CVE-2025-31161 in CrushFTP, immediate action is strongly advised to prevent potential unauthorized access or system compromise.

    • First, verify your current CrushFTP version by accessing the Software page or checking your installation directly.
    • Upgrade to the recommended patched versions: 10.8.4 or 11.3.1, to ensure you are protected against this vulnerability.
    • If immediate upgrades are not feasible, configuring the DMZ proxy as a temporary safeguard can help mitigate the risk. Refer to the official CrushFTP documentation for detailed configuration steps.
    • Additionally, monitor your systems for unusual activity and consider deploying network security measures such as Web Application Firewalls (WAF) and Intrusion Prevention Systems (IPS) to detect and block malicious exploitation attempts.

    Staying proactive by applying updates promptly and monitoring your environment is essential. If you need further assistance with the upgrade process or configuration, please do

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