Command Injection Vulnerability in GL.iNet MT3000 OpenVPN Client
CVE-2026-11406

5.3MEDIUM

Key Information:

Vendor

Gl.inet

Status
Mt3000
Vendor
CVE Published:
6 June 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-11406?

A command injection vulnerability exists in the GL.iNet MT3000 when using the OpenVPN Client Import Workflow via the ovpnclient.sh file. This security flaw allows for remote exploitation through malicious configuration files. Addressing the issue requires upgrading to version 4.9.0_beta3-1012-0513-1778656146, which incorporates stricter checks on OpenVPN configuration files to mitigate risks associated with command injection. Users are advised to promptly upgrade to ensure their system's security.

Affected Version(s)

MT3000 4.4.0

MT3000 4.4.1

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-2026-11406 - Proof of Concept

References

https://vuldb.com/vuln/368966
vdb-entry
https://vuldb.com/vuln/368966/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-11406
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
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
.