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8.9
Totolink A7100RU Router Exposes Users to Remote Attack
CVE-2026-6115
Summary
A security flaw in the Totolink A7100RU router's CGI Handler allows an attacker to execute unauthorized commands on the device, potentially giving them control over the router. This can be done remotely, making it a serious concern for users who have not taken steps to secure their router. Users should update their firmware to the latest version to patch this vulnerability.
Original title
A flaw has been found in Totolink A7100RU 7.4cu.2313_b20191024. This affects the function setAppCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Executing a manipulation of the ar...
Original description
A flaw has been found in Totolink A7100RU 7.4cu.2313_b20191024. This affects the function setAppCfg 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 may be launched remotely. The exploit has been published and may be used.
nvd CVSS2.0
10.0
nvd CVSS3.1
9.8
nvd CVSS4.0
8.9
Vulnerability type
CWE-77
Command Injection
CWE-78
OS Command Injection
Published: 12 Apr 2026 · Updated: 12 Apr 2026 · First seen: 12 Apr 2026