Check Point Advisories

TOTOLINK A720R Authentication Bypass (CVE-2025-4269; CVE-2025-4271)

Vulnerability
Protection

Check Point Reference:	CPAI-2025-0369
Date Published:	8 Jun 2025
Severity:	Medium
Last Updated:	Sunday 08 June, 2025
Source:
Industry Reference:	CVE-2025-4269 CVE-2025-4271
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	TOTOLINK A720R firmware 4.1.5cu.374
Vulnerability Description	An authentication bypass vulnerability exists in TOTOLINK A720R. Successful exploitation of this vulnerability would allow remote attackers to gain unauthorized access into 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

In the IPS tab, click Protections and find the TOTOLINK A720R Authentication Bypass protection using the Search tool and Edit the protection's settings.
Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name: Application Servers Protection Violation.
Attack Information: TOTOLINK A720R Authentication Bypass