CVE-2026-12187
HighCVSS 8.8Exploitation Probability (EPSS)
High risk78th percentile - higher than 78% of all known CVEs
Summary
In GL.iNet GL-MT3000 up to version 4.4.5, a command injection vulnerability exists in the file /usr/bin/one_click_upgrade of the Online Firmware Upgrade Handler. The attack can be launched remotely. A public exploit is available.
Risk Assessment
An attacker can remotely execute arbitrary commands on the device, potentially leading to full compromise of the router.
Recommendation
Update the GL.iNet GL-MT3000 firmware to version 4.7 or later.
Other vulnerabilities in GL.iNet GL-MT3000
See all- CVE-2026-18686Critical
A vulnerability was detected in GL.iNet GL-MT3000 up to version 4.4.5. It affects the nas-web.add_user function in the /cgi-bin/glc file of the nas-web RPC Wrapper component. Manipulation leads to command injection, and the attack can be initiated remotely. The exploit is public and may be used.
- CVE-2026-18685Critical
A security vulnerability has been detected in GL.iNet GL-MT3000 up to version 4.4.5. It affects the set_upgrade function in the /cgi-bin/glc file of the modem.so component. Such manipulation leads to command injection, and the attack can be launched remotely. The exploit has been publicly disclosed and may be used.
- CVE-2026-18684Critical
GL.iNet GL-MT3000 router up to version 4.4.5 contains a command injection vulnerability in the remove_profile function in /cgi-bin/glc of the modem.so component. The attack can be performed remotely, and the exploit is publicly available.
- CVE-2026-18616Critical
GL-iNet GL-MT3000 up to version 4.4.5 has a command injection vulnerability in the server.set_peer function of /cgi-bin/glc in the wg-server.so component. Manipulating the public_key argument allows remote command execution.
- CVE-2026-18615Critical
GL-iNet GL-MT3000 up to version 4.4.5 has a command injection vulnerability in the wg-server.generate_publickey function of /cgi-bin/glc in the wg-server.so component. Manipulating the private_key argument allows remote command execution.
- CVE-2026-18614Critical
GL-iNet GL-MT3000 up to version 4.4.5 has a command injection vulnerability in the s2s.enable_echo_server function of /cgi-bin/glc in the s2s.so component. Manipulating the port argument allows remote command execution.
- CVE-2026-18613Critical
GL-iNet GL-MT3000 up to version 4.4.5 has an injection vulnerability in the plugins.set_config function of /cgi-bin/glc in the plugins.so component. Manipulation leads to remote code execution.
- CVE-2026-18612Critical
GL-iNet GL-MT3000 up to version 4.4.5 has a command injection vulnerability in the plugins.remove_package and plugins.install_package functions of /cgi-bin/glc in the plugins.so component. Manipulation leads to remote command execution.
- CVE-2026-18602Critical
A vulnerability was determined in GL.iNet GL-MT3000 up to 4.4.5. Affected is the function ovpn-client.get_recommend_config of the file /cgi-bin/glc of the component ovpn-client.so Native Plugin. Executing a manipulation of the argument Hostname can lead to command injection. The attack can be executed remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure and confirmed the existence of the vulnerability.
- CVE-2026-18601Critical
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.
Original NVD description (English source)
A security vulnerability has been detected in GL.iNet GL-MT3000 up to 4.4.5. Affected by this vulnerability is an unknown functionality of the file /usr/bin/one_click_upgrade of the component Online Firmware Upgrade Handler. Such manipulation leads to command injection. The attack can be launched remotely. The exploit has been disclosed publicly and may be used. Upgrading to version 4.7 addresses this issue. Upgrading the affected component is advised. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.