Command Injection Vulnerability in GL.iNet GL-MT3000 Tor Proxy Configuration
CVE-2026-12186

8.7HIGH

Key Information:

Vendor

Gl.inet

Status
Gl-mt3000
Vendor
CVE Published:
14 June 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-12186?

A command injection vulnerability exists in the GL.iNet GL-MT3000 due to improper handling in the Tor Proxy Service Configuration Handler, specifically in the replace_country function. This weakness allows remote attackers to execute arbitrary commands on the affected device. The issue is prevalent in versions up to 4.4.5, but can be resolved by upgrading to version 4.7 or later. Users are advised to take immediate action to secure their devices by applying the latest firmware update, which addresses this serious security concern.

Affected Version(s)

GL-MT3000 4.4.0

GL-MT3000 4.4.1

GL-MT3000 4.4.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-12186 - Proof of Concept

References

https://vuldb.com/vuln/370832
vdb-entrytechnical-description
https://vuldb.com/vuln/370832/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-12186
third-party-advisory

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

strforexc (VulDB User)
VulDB CNA Team
.