CVE-2026-9434
Deferred Deferred - Pending Action
Command Injection in Totolink A8000RU Router

Publication date: 2026-05-25

Last updated on: 2026-05-25

Assigner: VulDB

Description
A security vulnerability has been detected in Totolink A8000RU 7.1cu.643_b20200521. Impacted is the function setWiFiWpsCfg of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. Such manipulation of the argument wscDisabled leads to os command injection. The attack may be launched remotely. The exploit has been disclosed publicly and may be used.
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Meta Information
Published
2026-05-25
Last Modified
2026-05-25
Generated
2026-06-15
AI Q&A
2026-05-26
EPSS Evaluated
2026-06-14
NVD
CVE-2026-9434
EUVD
EUVD-2026-31640
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
totolink a8000ru 7.1cu.643_b20200521
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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 A8000RU router, specifically in the function setWiFiWpsCfg within the Web Management Interface file /cgi-bin/cstecgi.cgi. It involves manipulation of the argument wscDisabled, which leads to an operating system command injection. This means an attacker can remotely execute arbitrary commands on the device.

Impact Analysis

The vulnerability allows remote attackers to execute arbitrary OS commands on the affected device without any authentication or user interaction. This can lead to full compromise of the device, including unauthorized access, control over network traffic, data theft, or disruption of network services.

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