CVE-2026-18601
CriticalCVSS 9.8Summary
A vulnerability was found in GL.iNet GL-MT3000 up to 4.4.5. This impacts the function ovpn-client.check_config of the file /cgi-bin/glc of the component ovpn-client.so Native Plugin. Performing a manipulation of the argument filename results in command injection. Remote exploitation of the attack is possible. The exploit has been made public and could be used. The vendor was contacted early about this disclosure and confirmed the existence of the vulnerability.
Risk Assessment
The risk includes remote execution of arbitrary commands on the device, potentially leading to full compromise of the router and access to the internal network.
Recommendation
It is recommended to immediately update the GL.iNet GL-MT3000 firmware to the latest version and restrict access to the management interface to trusted networks only.
Original NVD description (English source)
A vulnerability was found in GL.iNet GL-MT3000 up to 4.4.5. This impacts the function ovpn-client.check_config of the file /cgi-bin/glc of the component ovpn-client.so Native Plugin. Performing a manipulation of the argument filename results in command injection. Remote exploitation of the attack is possible. The exploit has been made public and could be used. The vendor was contacted early about this disclosure and confirmed the existence of the vulnerability.