CVE-2025-41273: Waterfall WF-500 authentication bypass in Console WebUI

CVE-2025-41273 · Severity: info · CVSS 9.3 · Published 2026-05-29

A security vulnerability has been identified in the Waterfall WF-500 Unidirectional Security Gateway, a device used to protect industrial control systems by ensuring data only flows in one direction. An attacker can bypass the login screen of the device's management interface without needing a username or password. This could allow an unauthorized person to change device settings or disrupt the monitoring of critical infrastructure.

Technologies: Waterfall Security Solutions WF-500 RX Host, Waterfall Security Solutions WF-500 TX Host. Vendors: Waterfall Security Solutions.

Quick answers

Is CVE-2025-41273 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2025-41273 being exploited in the wild.
How severe is CVE-2025-41273?
Informational severity, with a CVSS score of 9.3, published 29 May 2026.
Which products and versions are affected?
Waterfall Security Solutions WF-500 RX Host 7.9.1.0 R2502171040; Waterfall Security Solutions WF-500 TX Host 7.9.1.0 R2502171040.
Is there a fix for CVE-2025-41273?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2025-41273 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2025-41273?
Check whether you run Waterfall Security Solutions WF-500 RX Host or Waterfall Security Solutions WF-500 TX Host at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

An authentication bypass vulnerability (CWE-288) exists in the Console WebUI of Waterfall WF-500 TX and RX hosts. The flaw involves the use of an alternate path or channel that allows an attacker to circumvent standard authentication mechanisms. A remote, unauthenticated attacker can exploit this vulnerability over the network to gain access to the web application with the privileges of an authenticated user. This allows for full unauthorized management of the affected host. The vulnerability is confirmed in version 7.9.1.0 R2502171040.

Affected products

  • Waterfall Security Solutions WF-500 TX Host 7.9.1.0 R2502171040
  • Waterfall Security Solutions WF-500 RX Host 7.9.1.0 R2502171040

Timeline

  • 2026-05-29: disclosed: Initial disclosure by Nozomi Networks Labs and NVD publication.

References

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