CVE-2026-6131
Received Received - Intake
OS Command Injection in Totolink A7100RU CGI Handler (Remote

Publication date: 2026-04-12

Last updated on: 2026-04-12

Assigner: VulDB

Description
A vulnerability was found in Totolink A7100RU 7.4cu.2313_b20191024. Affected by this vulnerability is the function setTracerouteCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument command results in os command injection. The attack may be launched remotely. The exploit has been made public and could be used.
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Meta Information
Published
2026-04-12
Last Modified
2026-04-12
Generated
2026-06-16
AI Q&A
2026-04-13
EPSS Evaluated
2026-06-14
NVD
CVE-2026-6131
EUVD
EUVD-2026-21748
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
totolink a7100ru 7.4cu.2313_b20191024
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-77 The product 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.
CWE-78 The product 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.
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Executive Summary

This vulnerability exists in the Totolink A7100RU router, specifically in the setTracerouteCfg function within the /cgi-bin/cstecgi.cgi file of the CGI Handler component.

The issue arises from improper handling of the 'command' argument, which allows an attacker to perform OS command injection.

This means an attacker can remotely execute arbitrary operating system commands on the device by manipulating this argument.

The exploit for this vulnerability has been made public, increasing the risk of attacks.

Impact Analysis

This vulnerability can have severe impacts because it allows remote attackers to execute arbitrary OS commands on the affected device without any authentication.

Such unauthorized command execution can lead to full compromise of the device, including data theft, device control, disruption of network services, or using the device as a foothold for further attacks.

Given the high CVSS scores (up to 10.0 in version 2.0), the risk level is critical.

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