CVE-2026-7718
Received Received - Intake
Command Injection in Totolink WA300 Firmware

Publication date: 2026-05-04

Last updated on: 2026-05-04

Assigner: VulDB

Description
A vulnerability was identified in Totolink WA300 5.2cu.7112_B20190227. Impacted is the function setWebWlanIdx of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. The manipulation of the argument webWlanIdx leads to command injection. The attack may be initiated remotely. The exploit is publicly available and might be used.
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Meta Information
Published
2026-05-04
Last Modified
2026-05-04
Generated
2026-06-16
AI Q&A
2026-05-04
EPSS Evaluated
2026-06-15
NVD
CVE-2026-7718
EUVD
EUVD-2026-26869
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
totolink wa300 5.2cu.7112_b20190227
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 WA300 device, specifically in the function setWebWlanIdx within the file /cgi-bin/cstecgi.cgi, which is part of the POST Request Handler component. The issue arises from improper handling of the webWlanIdx argument, allowing an attacker to perform command injection.

Because the vulnerability can be exploited remotely, an attacker can send specially crafted requests to the device to execute arbitrary commands.

The exploit for this vulnerability is publicly available, increasing the risk of attacks.

Impact Analysis

This vulnerability can allow a remote attacker to execute arbitrary commands on the affected device, potentially leading to unauthorized control over the device.

Such control could be used to disrupt network operations, steal sensitive information, or use the device as a foothold for further attacks within a network.

Given that the exploit is publicly available, the risk of exploitation is higher.

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