Command Injection Vulnerability in GL.iNet GL-MT3000 FTP Protocol Handler
CVE-2026-11451

6.9MEDIUM

Key Information:

Vendor

Gl.inet

Status
Gl-mt3000
Vendor
CVE Published:
7 June 2026

What is CVE-2026-11451?

A vulnerability has been discovered in the GL.iNet GL-MT3000 product specifically affecting version 4.4.5. This flaw lies in the function snprintf used within the FTP Protocol Handler located in /cgi-bin/glc. An attacker could manipulate the media_dir argument to execute arbitrary commands remotely. The exploit relies on closing single quotes, appending additional commands, and commenting out with '#', but these payloads do not trigger actual command execution due to enhancements introduced in version 4.8.1, where single quotes are properly escaped. Users are advised to upgrade to version 4.8.1 or later to mitigate this issue.

Affected Version(s)

GL-MT3000 4.4.5

GL-MT3000 4.8.1

References

https://vuldb.com/vuln/369071
vdb-entrytechnical-description
https://vuldb.com/vuln/369071/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-11451
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

strforexc (VulDB User)
VulDB CNA Team
.