CVE-2026-7154
OS Command Injection in Totolink A8000RU CGI Handler
Publication date: 2026-04-27
Last updated on: 2026-04-27
Assigner: VulDB
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| totolink | a8000ru | 7.1cu.643_b20200521 |
Helpful Resources
Exploitability
| 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. |
Attack-Flow Graph
AI Powered Q&A
How can this vulnerability impact me? :
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, data theft, disruption of services, or using the device as a foothold for further attacks.
Can you explain this vulnerability to me?
This vulnerability exists in the Totolink A8000RU router, specifically in the function setAdvancedInfoShow within the CGI Handler component. It involves the manipulation of the argument tty_server in the /cgi-bin/cstecgi.cgi file, which can lead to operating system command injection. This means an attacker can remotely execute arbitrary commands on the affected device.