CVE-2026-18612 GL-iNet GL-MT3000 plugins.so Native Plugin glc plugins.install_package command injection
Remote attackers can execute arbitrary commands on GL-iNet GL-MT3000 routers via the plugins.install_package function in the native plugin.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-18612?
CVE-2026-18612 is a critical command injection vulnerability in GL-iNet GL-MT3000, published on 3 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A flaw has been found in GL-iNet GL-MT3000 up to 4.4.5. This vulnerability affects the function plugins.remove_package/plugins.install_package of the file /cgi-bin/glc of the component plugins.so Native Plugin. This manipulation causes command injection. The attack can be initiated remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure and confirmed the existence of the vulnerability.
Which versions are affected by CVE-2026-18612?
How do I fix CVE-2026-18612?
No fix has been published for CVE-2026-18612 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-2026-18612 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-18612 exists.
Sources
Also known as GHSA-jjmc-7j8f-v4hf.