CVE-2026-18616 GL-iNet GL-MT3000 wg-server.so Native Plugin glc server.set_peer command injection
Remote attackers can execute arbitrary commands on GL-iNet GL-MT3000 routers via the wg-server.so plugin's set_peer function.
- 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-2026-18616?
CVE-2026-18616 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 vulnerability was identified in GL-iNet GL-MT3000 up to 4.4.5. The impacted element is the function server.set_peer of the file /cgi-bin/glc of the component wg-server.so Native Plugin. The manipulation of the argument public_key leads to command injection. Remote exploitation of the attack is possible. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure and confirmed the existence of the vulnerability.
Which versions are affected by CVE-2026-18616?
How do I fix CVE-2026-18616?
No fix has been published for CVE-2026-18616 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-2026-18616 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-18616 exists.
Sources
Also known as GHSA-39jx-5rpr-2f33.