CVE-2026-18686
CriticalCVSS 9.8Exploitation Probability (EPSS)
High risk84th percentile - higher than 84% of all known CVEs
Summary
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.
Risk Assessment
Risk of remote code execution or unauthorized command execution, potentially leading to data integrity and confidentiality breaches.
Recommendation
Immediately update the firmware to a version newer than 4.4.5 and restrict access to the administrative interface.
Original NVD description (English source)
A vulnerability was detected in GL.iNet GL-MT3000 up to 4.4.5. The affected element is the function nas-web.add_user of the file /cgi-bin/glc of the component nas-web RPC Wrapper. Performing a manipulation results in command injection. The attack can be initiated remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure and confirmed the existence of the vulnerability.