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8.9
Totolink A7100RU Routers: Remote Code Execution
CVE-2026-6113
Summary
A security flaw in the Totolink A7100RU router can allow hackers to execute malicious code on the device from anywhere on the internet. This could potentially be exploited by hackers who have access to the router's management interface. To protect your network, consider updating your router's software as soon as possible or reaching out to the manufacturer for assistance.
Original title
A security vulnerability has been detected in Totolink A7100RU 7.4cu.2313_b20191024. Affected by this vulnerability is the function setTtyServiceCfg of the file /cgi-bin/cstecgi.cgi of the componen...
Original description
A security vulnerability has been detected in Totolink A7100RU 7.4cu.2313_b20191024. Affected by this vulnerability is the function setTtyServiceCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Such manipulation of the argument ttyEnable leads to os command injection. The attack can be launched remotely. The exploit has been disclosed publicly 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