Command Injection Vulnerability in GL.iNet GL-MT3000 Router
CVE-2026-18602

9.3CRITICAL

Key Information:

Vendor

Gl.inet

Status
Gl-mt3000
Vendor
CVE Published:
3 August 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-18602?

A command injection vulnerability exists in the GL.iNet GL-MT3000 router's ovpn-client native plugin. This vulnerability is triggered when an attacker manipulates the Hostname argument within the ovpn-client.get_recommend_config function. The flaw allows for remote exploitation, enabling unauthorized command execution. The vendor has acknowledged the presence of this vulnerability and it has been publicly disclosed, attracting attention from potential attackers. Users are advised to take preventive measures to mitigate the risk of exploitation.

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-2026-18602 - Proof of Concept

References

https://vuldb.com/vuln/385517
vdb-entrytechnical-description
https://vuldb.com/vuln/385517/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-18602
third-party-advisory

CVSS V4

Score:
9.3
Severity:
CRITICAL
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
.