CVE-2026-18612
Received Received - Intake

Command Injection in GL-iNet GL-MT3000

Publication date: 2026-08-03

Last updated on: 2026-08-03

Assigner: VulDB

Description
A flaw has been found in GL-iNet GL-MT3000 up to 4.4.5. This vulnerability affects the function plugins.remove_package/plugins.install_package of the file /cgi-bin/glc of the component plugins.so Native Plugin. This manipulation causes command injection. The attack can be initiated remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure and confirmed the existence of the vulnerability.

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Meta Information

Published
2026-08-03
Last Modified
2026-08-03
Generated
2026-08-03
AI Q&A
2026-08-03
EPSS Evaluated
N/A
NVD
CVE-2026-18612
EUVD
EUVD-2026-52395

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
gl-inet gl-mt3000 to 4.4.5 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
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.
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.

Attack-Flow Graph

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Executive Summary

This is a command injection vulnerability in GL-iNet GL-MT3000 devices running firmware up to version 4.4.5. The flaw exists in the plugins.remove_package and plugins.install_package functions within the /cgi-bin/glc file, specifically in the plugins.so Native Plugin component. An attacker can remotely exploit this to execute arbitrary commands on the device.

Detection Guidance

This vulnerability involves command injection in GL-iNet GL-MT3000 devices running firmware up to 4.4.5. To detect it, check for unauthorized modifications to the /cgi-bin/glc file or plugins.so component. Inspect network traffic for suspicious commands sent to the device's web interface. Verify if the plugins.remove_package or plugins.install_package functions are accessible without proper authentication.

Impact Analysis

This vulnerability allows remote attackers to gain full control of the affected device. They could install malicious software, steal sensitive data, monitor network traffic, or use the device as part of a botnet. Since the device is likely a router, this could compromise all connected devices and network traffic.

Compliance Impact

This vulnerability could lead to unauthorized access and data breaches, violating GDPR and HIPAA requirements for data protection and security. Organizations using affected GL-iNet devices may face compliance violations, legal penalties, and reputational damage if exploited.

Mitigation Strategies

Immediately update GL-iNet GL-MT3000 to a version beyond 4.4.5 to patch the command injection flaw in plugins.so. Disable remote access to /cgi-bin/glc if not required. Monitor network traffic for unusual activity targeting this endpoint.

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