CVE-2026-11406 GL.iNet MT3000 OpenVPN Client Import Workflow ovpnclient.sh command injection
Remote attackers can execute arbitrary commands on GL.iNet MT3000 routers via malicious OpenVPN configuration files.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-11406?
CVE-2026-11406 is a medium-severity command injection vulnerability in GL.iNet MT3000, published on 6 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability was determined in GL.iNet MT3000 up to 4.4.5. This vulnerability affects unknown code of the file ovpnclient.sh of the component OpenVPN Client Import Workflow. This manipulation causes command injection. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized. Upgrading to version 4.9.0_beta3-1012-0513-1778656146 is able to resolve this issue. You should upgrade the affected component. The vendor confirms: "This issue has been addressed by implementing malicious checks on OpenVPN configuration files to prevent command injection attacks carried through malicious configuration files."
Which versions are affected by CVE-2026-11406?
How do I fix CVE-2026-11406?
No fix has been published for CVE-2026-11406 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-11406 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-11406 exists.
Sources
Also known as GHSA-6qr8-c78q-5fg9.