Check Point Advisories

Draytek Vigor300B Command Injection (CVE-2026-3040)

Check Point Reference: CPAI-2026-1697
Date Published: 15 Mar 2026
Severity: High
Last Updated: Sunday 15 March, 2026
Source:
Industry Reference:CVE-2026-3040
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable? Draytek Vigor300B firmware up to version 1.5.1.6
Vulnerability Description A command injection vulnerability exists in Draytek Vigor300B. Successful exploitation of this vulnerability could allow a remote attacker to execute arbitrary commands on the affected system.

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 Draytek Vigor300B Command Injection (CVE-2026-3040) 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:  Draytek Vigor300B Command Injection (CVE-2026-3040)

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