CVE-2026-1548
Unknown Unknown - Not Provided
Remote Command Injection in Totolink A7000R CloudACMunualUpdateUserdata

Publication date: 2026-01-28

Last updated on: 2026-04-29

Assigner: VulDB

Description
A flaw has been found in Totolink A7000R 4.1cu.4154. This impacts the function CloudACMunualUpdateUserdata of the file /cgi-bin/cstecgi.cgi. This manipulation of the argument url causes command injection. The attack can be initiated remotely. The exploit has been published 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-2026-1548
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 is a command injection flaw in the Totolink A7000R router firmware version 4.1cu.4154. It affects the CloudACMunualUpdateUserdata function in the /cgi-bin/cstecgi.cgi file. By manipulating the 'url' argument, an attacker can inject and execute arbitrary commands remotely on the device.

Impact Analysis

The vulnerability allows remote attackers to execute arbitrary commands on the affected device, potentially leading to unauthorized control, data compromise, or disruption of the device's normal operation.

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