CVE-2026-12187: Command Injection in GL.iNet GL-MT3000
GL.iNet GL-MT3000 devices running firmware versions 4.4.0 through 4.4.5 contain a command injection vulnerability in the Online Firmware Upgrade Handler component, specifically in the /usr/bin/one_click_upgrade file. This vulnerability allows remote attackers to execute arbitrary commands. The issue is addressed by upgrading to version 4.7. The vendor has released a fixed version promptly after being notified.
AI Analysis
Technical Summary
CVE-2026-12187 is a command injection vulnerability affecting GL.iNet GL-MT3000 devices with firmware versions 4.4.0 to 4.4.5. The vulnerability resides in an unspecified functionality of the /usr/bin/one_click_upgrade file within the Online Firmware Upgrade Handler component. Successful exploitation allows remote attackers to execute arbitrary commands on the device. The vendor responded quickly and released firmware version 4.7 to fix this issue.
Potential Impact
Remote attackers can exploit this vulnerability to execute arbitrary commands on affected GL-MT3000 devices, potentially leading to full system compromise. The CVSS 4.0 base score is 8.7 (high severity), reflecting the ease of remote exploitation without user interaction and the high impact on confidentiality, integrity, and availability.
Mitigation Recommendations
Upgrade affected GL.iNet GL-MT3000 devices from versions 4.4.0 through 4.4.5 to version 4.7 or later, which contains the official fix for this command injection vulnerability. No other mitigation steps are indicated by the vendor advisory.
CVE-2026-12187: Command Injection in GL.iNet GL-MT3000
Description
GL.iNet GL-MT3000 devices running firmware versions 4.4.0 through 4.4.5 contain a command injection vulnerability in the Online Firmware Upgrade Handler component, specifically in the /usr/bin/one_click_upgrade file. This vulnerability allows remote attackers to execute arbitrary commands. The issue is addressed by upgrading to version 4.7. The vendor has released a fixed version promptly after being notified.
CVSS v4.0
Score 8.7high
Affected software
pkg:github/gl.inet/GL-MT3000Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-12187 is a command injection vulnerability affecting GL.iNet GL-MT3000 devices with firmware versions 4.4.0 to 4.4.5. The vulnerability resides in an unspecified functionality of the /usr/bin/one_click_upgrade file within the Online Firmware Upgrade Handler component. Successful exploitation allows remote attackers to execute arbitrary commands on the device. The vendor responded quickly and released firmware version 4.7 to fix this issue.
Potential Impact
Remote attackers can exploit this vulnerability to execute arbitrary commands on affected GL-MT3000 devices, potentially leading to full system compromise. The CVSS 4.0 base score is 8.7 (high severity), reflecting the ease of remote exploitation without user interaction and the high impact on confidentiality, integrity, and availability.
Mitigation Recommendations
Upgrade affected GL.iNet GL-MT3000 devices from versions 4.4.0 through 4.4.5 to version 4.7 or later, which contains the official fix for this command injection vulnerability. No other mitigation steps are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-06-14T06:30:11.012Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a2f29351cccde5f2644bbd5
Added to database: 6/14/2026, 10:20:37 PM
Last enriched: 6/14/2026, 10:35:29 PM
Last updated: 6/14/2026, 11:23:10 PM
Views: 6
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