CVE-2026-19982 GL.iNet BE9300/MT6000 Firewall-management RPC os command injection
Remote attackers can execute arbitrary OS commands on GL.iNet BE9300 and MT6000 routers via the firewall-management RPC interface.
- 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-2026-19982?
CVE-2026-19982 is a medium-severity command injection vulnerability in GL.iNet BE9300, published on 17 Aug 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 BE9300 and MT6000 4.8.x. This vulnerability affects unknown code of the component Firewall-management RPC. The manipulation of the argument dest_port/dest_ip leads to os command injection. The attack may be initiated remotely. Upgrading to version 4.9.0 is able to resolve this issue. The affected component should be upgraded. The vendor explains: "After our investigation, we have confirmed that the vulnerability described (...) does indeed exist."
Which versions are affected by CVE-2026-19982?
How do I fix CVE-2026-19982?
No fix has been published for CVE-2026-19982 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-2026-19982 being exploited?
There is no known exploitation of CVE-2026-19982 in the wild and no public exploit code.
Sources
Also known as GHSA-3gr2-27fr-g5v9.