Command Injection Vulnerability in GL-iNet GL-MT3000
CVE-2026-18612

9.3CRITICAL

Key Information:

Vendor

Gl-inet

Status
Gl-mt3000
Vendor
CVE Published:
3 August 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-18612?

A vulnerability in the GL-iNet GL-MT3000 router has been identified that allows for command injection through the plugins.so Native Plugin. The flaw resides in the manipulation of the functions 'plugins.remove_package' and 'plugins.install_package' within the /cgi-bin/glc file. This issue can be exploited remotely, enabling potential attackers to execute arbitrary commands on the device. The vendor has been notified and has confirmed the existence of this vulnerability, which is being actively discussed in the cybersecurity community.

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-2026-18612 - Proof of Concept

References

https://vuldb.com/vuln/385532
vdb-entrytechnical-description
https://vuldb.com/vuln/385532/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-18612
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
.