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CVE-2026-6027

CRITICAL CVSS 4.0: 9.3 EPSS 1.25%
Updated Apr 10, 2026
Totolink
Parameter Value
CVSS 9.3 (CRITICAL)
Type CWE-77 (Command Injection), CWE-78 (OS Command Injection)
Vendor Totolink
Public PoC No

A weakness has been identified in Totolink A7100RU 7.4cu.2313_b20191024. This issue affects the function setUrlFilterRules of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Executing a manipulation of the argument enable can lead to os command injection.

The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v4.0

Vulnerable Products

totolink:a7100ru