CVE-2025-41273: Waterfall-Security Wf-500 Firmware

Critical severity, CVSS 9.8. EPSS: 0.4% chance of exploitation in the next 30 days.

Nozomi Networks Labs identified a CWE-288: Authentication Bypass Using an Alternate Path or Channel in the Console WebUI in Waterfall WF-500 TX and RX Hosts in version 7.9.1.0 R2502171040 that allows remote unauthenticated attackers to bypass authentication of the Console web application and perform actions as an authenticated user.

Affected products

• Waterfall-Security Wf-500 Firmware: up to and including 7.9.1.0_r2502171040

Published 2026-05-29. Last modified 2026-07-21.