CVE-2026-9405
Deferred Deferred - Pending Action
Command Injection in Totolink A8000RU

Publication date: 2026-05-25

Last updated on: 2026-05-25

Assigner: VulDB

Description
A security flaw has been discovered in Totolink A8000RU 7.1cu.643_b20200521. This impacts the function setGameSpeedCfg of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. Performing a manipulation of the argument enable results in os command injection. Remote exploitation of the attack is possible. The exploit has been released to the public and may be used for attacks.
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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-2026-9405
EUVD
EUVD-2026-31608
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
totolink a8000ru 7.1cu.643_b20200521
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 is a security flaw found in the Totolink A8000RU router's Web Management Interface, specifically in the setGameSpeedCfg function within the /cgi-bin/cstecgi.cgi file. By manipulating the 'enable' argument, an attacker can perform an OS command injection, allowing them to execute arbitrary commands on the device remotely.

The vulnerability can be exploited remotely without any authentication, and the exploit code has already been publicly released, increasing the risk of attacks.

Impact Analysis

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

  • Complete compromise of the affected router.
  • Potential unauthorized access to the internal network.
  • Interruption or manipulation of network traffic.
  • Use of the compromised device as a launch point for further attacks.
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