Command Injection Vulnerability in GL-iNet GL-MT3000 by GL-iNet
CVE-2026-18615

9.3CRITICAL

Key Information:

Vendor

Gl-inet

Status
Gl-mt3000
Vendor
CVE Published:
3 August 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-18615?

A command injection vulnerability exists in the GL-iNet GL-MT3000 device, specifically within the wg-server.generate_publickey function found in the /cgi-bin/glc path of the wg-server.so Native Plugin. By manipulating the private_key argument, an attacker could execute arbitrary commands on the system. This vulnerability allows remote exploitation, posing a significant threat. Following a public disclosure, this vulnerability has been acknowledged by the vendor, emphasizing the need for immediate attention from users of affected versions.

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-2026-18615 - Proof of Concept

References

https://vuldb.com/vuln/385535
vdb-entrytechnical-description
https://vuldb.com/vuln/385535/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-18615
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

Strforexc2 (VulDB User)
VulDB CNA Team
.