Check Point Advisories

SignalK Signal K Server Remote Code Execution (CVE-2025-66398)

Check Point Reference: CPAI-2025-14069
Date Published: 30 Mar 2026
Severity: High
Last Updated: Monday 30 March, 2026
Source:
Industry Reference:CVE-2025-66398
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable? SignalK Signal K Server prior to 2.19.0
Vulnerability Description A remote code execution vulnerability in SignalK Signal K Server allows unauthenticated attackers to hijack the administrator's "Restore" functionality to overwrite critical server configuration files, leading to account takeover and remote code execution.

Protection Overview

This protection detects attempts to exploit this vulnerability.

In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, click on Protection tab and select the version of your choice.

Security Gateway R81 / R80 / R77 / R75

  1. In the IPS tab, click Protections and find the SignalK Signal K Server Remote Code Execution (CVE-2025-66398) protection using the Search tool and Edit the protection's settings.
  2. Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name:  Web Server Enforcement Violation.
Attack Information:  SignalK Signal K Server Remote Code Execution (CVE-2025-66398)

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