Vulnerability Description
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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://fw.gl-inet.com/firmware/mt3000/release/mt3000-4.8.1-0819-1755615825.tar
- https://github.com/StrTzz123/iot_vul/tree/main/GL-iNet/MT3000/4.4.5/upgrade_onli
- https://vuldb.com/cve/CVE-2026-12187
- https://vuldb.com/submit/815654
- https://vuldb.com/vuln/370833
- https://vuldb.com/vuln/370833/cti
FAQ
What is CVE-2026-12187?
CVE-2026-12187 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 F...
How severe is CVE-2026-12187?
CVE-2026-12187 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-12187?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.