CVE-2025-31161 is being actively exploited and it’s not getting the attention it should.

Urgent Security Alert: CVE-2025-31161 Vulnerability in CrushFTP Under Siege

In a concerning development within the cybersecurity landscape, the authentication bypass vulnerability designated as CVE-2025-31161 is currently being exploited in the wild, yet it has not garnered the attention it rightfully deserves. This critical vulnerability impacts CrushFTP versions ranging from 10.0.0 to 10.8.3, as well as versions 11.0.0 to 11.3.0.

The implications of this exploit are severe; if successful, malicious actors can gain unauthorized access to sensitive files, potentially leading to full system control, depending on the system’s configuration. Alarmingly, active attacks have already been confirmed, suggesting a heightened risk for those still running vulnerable versions.

To mitigate this threat immediately, it is strongly advised that users upgrade to CrushFTP versions 10.8.4 or 11.3.1 without delay. For those unable to implement these updates right away, utilizing CrushFTP’s DMZ proxy can provide a temporary safeguard during this critical period.

If you are currently managing CrushFTP or know individuals or organizations utilizing this Software, it is vital to verify the version in use and apply the necessary patches as soon as possible. Given the nature of such vulnerabilities, it is not far-fetched to anticipate that it could become a stepping stone for ransomware attacks in the future.

Now is the time for proactive measures—ensure that your systems are secure and take the steps necessary to protect sensitive information.

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