CVE-2026-12187

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.

• CWE-74
• CWE-77

• 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_online_url
• https://vuldb.com/cve/CVE-2026-12187
• https://vuldb.com/submit/815654
• https://vuldb.com/vuln/370833
• https://vuldb.com/vuln/370833/cti

Published

Jun 14, 2026

Last Modified

Jul 24, 2026

Status

Deferred

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-121857The Event Tickets with Ticket Scanner WordPress plugin befor…4.2
• CVE-2026-121858The Event Tickets with Ticket Scanner WordPress plugin befor…6.3
• CVE-2026-12186A weakness has been identified in GL.iNet GL-MT3000 up to 4.…8.8
• CVE-2026-121862The Knowledge Building WordPress plugin before 0.7.3 does no…8.8
• CVE-2026-121863The Knowledge Building WordPress plugin before 0.7.3 does no…7.1
• CVE-2026-121866The iLeads SMS Gateway by Exsile WordPress plugin before 2.0…8.8
• CVE-2026-121870The Simpler Checkout WordPress plugin before 1.5.4 does not …7.5
• CVE-2026-121873The Redirection for Contact Form 7 WordPress plugin before 3…5.3
• CVE-2026-121874The Post Duplicator WordPress plugin before 3.0.18 does not …7.2
• CVE-2026-121875The Post Duplicator WordPress plugin before 3.0.18 does not …7.2
• CVE-2026-121876A flaw was found in the interaction between systemd-gpt-auto…7.9
• CVE-2026-12188A vulnerability was detected in Grit42 Grit up to 0.11.0. Af…6.3