CVE-2026-11449 GL.iNet GL-MT3000 LuCI JSON-RPC rpc rpc_sys command injection
Remote attackers can execute arbitrary commands via the LuCI JSON-RPC interface on GL.iNet GL-MT3000 routers running older firmware.
- 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-2026-11449?
CVE-2026-11449 is a medium-severity command injection vulnerability in GL.iNet GL-MT3000, published on 7 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A security vulnerability has been detected in GL.iNet GL-MT3000 4.4.5. The impacted element is the function rpc_sys of the file /cgi-bin/luci/rpc of the component LuCI JSON-RPC Interface. Such manipulation leads to command injection. The attack may be performed from remote. Upgrading to version 4.8.1 is sufficient to resolve this issue. Upgrading the affected component is advised. The vendor confirms: "The issue discovered by the vulnerability researcher on older firmware versions(4.4.5) has actually been fixed and mitigated in the new version. According to the latest firmware fixes, by default, firmware versions after 4.7.13 do not install LuCI, so this vulnerability cannot be exploited."
Which versions are affected by CVE-2026-11449?
How do I fix CVE-2026-11449?
No fix has been published for CVE-2026-11449 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-2026-11449 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-11449 exists.
Sources
Also known as GHSA-w9mf-f5g7-vfhw.