CVE-2026-7155
Received Received - Intake
OS Command Injection in Totolink A8000RU CGI Handler

Publication date: 2026-04-27

Last updated on: 2026-04-27

Assigner: VulDB

Description
A security vulnerability has been detected in Totolink A8000RU 7.1cu.643_b20200521. This impacts the function setLoginPasswordCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument admpass leads to os command injection. The attack may be initiated remotely. The exploit has been disclosed publicly and may be used.
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Meta Information
Published
2026-04-27
Last Modified
2026-04-27
Generated
2026-06-16
AI Q&A
2026-04-28
EPSS Evaluated
2026-06-14
NVD
CVE-2026-7155
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 exists in the Totolink A8000RU router, specifically in the function setLoginPasswordCfg within the CGI Handler component. It involves the manipulation of the argument 'admpass' which leads to operating system command injection. This means an attacker can remotely execute arbitrary commands on the device by exploiting this flaw.

Impact Analysis

The vulnerability allows remote attackers to execute arbitrary operating system commands on the affected device without any authentication. This can lead to full compromise of the device, including unauthorized access, control over the router, disruption of network services, and potential use of the device as a launch point for further attacks.

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