Remote OS Command Injection via CGI in Totolink A7100RU (7.4cu.2313_b20191024)
CVE-2026-5851 Published on April 9, 2026
Totolink A7100RU CGI cstecgi.cgi setUPnPCfg os command injection
A security flaw has been discovered in Totolink A7100RU 7.4cu.2313_b20191024. This impacts the function setUPnPCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument enable results in os command injection. The attack can be executed remotely. The exploit has been released to the public and may be used for attacks.
Timeline
Advisory disclosed
VulDB entry created
VulDB entry last update
Weakness Types
What is a Shell injection Vulnerability?
The software constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.
CVE-2026-5851 has been classified to as a Shell injection vulnerability or weakness.
What is a Command Injection Vulnerability?
The software constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.
CVE-2026-5851 has been classified to as a Command Injection vulnerability or weakness.
Products Associated with CVE-2026-5851
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