Remote OS Command Injection in Totolink A7100RU setRemoteCfg

Publication date: 2026-04-06

Last updated on: 2026-04-29

Assigner: VulDB

Description

A flaw has been found in Totolink A7100RU 7.4cu.2313_b20191024. The impacted element is the function setRemoteCfg of the file /cgi-bin/cstecgi.cgi. Executing a manipulation of the argument enable can lead to os command injection. The attack can be executed remotely. The exploit has been published and may be used.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-04-06

Last Modified

2026-04-29

Generated

2026-07-06

AI Q&A

2026-04-07

EPSS Evaluated

2026-07-05

NVD

CVE-2026-5690

EUVD

EUVD-2026-19553

Affected Vendors & Products

Vendor	Product	Version / Range
totolink	a7100ru	7.4cu.2313_b20191024

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
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.
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.

Attack-Flow Graph

Executive Summary

This vulnerability is a flaw found in the Totolink A7100RU router, specifically in the function setRemoteCfg within the file /cgi-bin/cstecgi.cgi. It involves improper handling of the 'enable' argument, which can be manipulated to perform OS command injection. This means an attacker can remotely execute arbitrary operating system commands on the affected device.

Impact Analysis

The vulnerability allows remote attackers to execute arbitrary OS commands on the affected Totolink A7100RU device without any authentication or user interaction. This can lead to unauthorized control over the device, potentially compromising the network it is connected to, leading to data breaches, service disruption, or further attacks.

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