Check Point Advisories

LB-LINK BL-AC3600 Command Injection (CVE-2025-4076)

Check Point Reference: CPAI-2025-17830
Date Published: 2 Jul 2026
Severity: High
Last Updated: Thursday 02 July, 2026
Source:
Industry Reference:CVE-2025-4076
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable? LB-LINK BL-AC3600 1.0.22 and prior
Vulnerability Description A command injection vulnerability in LB-LINK BL-AC3600 allows remote attackers to execute arbitrary commands by manipulating the routepwd argument in the Password Handler component.

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 LB-LINK BL-AC3600 Command Injection (CVE-2025-4076) 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:  Application Servers Protection Violation.
Attack Information:  LB-LINK BL-AC3600 Command Injection (CVE-2025-4076)

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