CVE-2026-1547
Unknown Unknown - Not Provided
Remote Command Injection in Totolink A7000R setUnloadUserData Function

Publication date: 2026-01-28

Last updated on: 2026-04-29

Assigner: VulDB

Description
A vulnerability was detected in Totolink A7000R 4.1cu.4154. This affects the function setUnloadUserData of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument plugin_name results in command injection. It is possible to launch the attack remotely. The exploit is now public and may be used.
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Meta Information
Published
2026-01-28
Last Modified
2026-04-29
Generated
2026-06-16
AI Q&A
2026-01-29
EPSS Evaluated
2026-06-15
NVD
CVE-2026-1547
EUVD
EUVD-2026-4846
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
totolink a7000r_firmware 4.1cu.4154
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-74 The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.
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Executive Summary

This vulnerability exists in the Totolink A7000R router firmware version 4.1cu.4154, specifically in the function setUnloadUserData within the /cgi-bin/cstecgi.cgi file. It involves manipulation of the argument 'plugin_name' which leads to command injection, allowing an attacker to execute arbitrary commands on the device remotely.

Impact Analysis

The vulnerability allows remote attackers to inject and execute arbitrary commands on the affected device. This can lead to unauthorized control over the router, potentially compromising network security, intercepting or altering network traffic, and causing disruption or data breaches.

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