CVE-2026-18614 GL-iNet GL-MT3000 s2s.so Native Plugin glc s2s.enable_echo_server command injection
Remote attackers can execute arbitrary commands on GL-iNet GL-MT3000 routers via the s2s.so plugin's echo server configuration.
- 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-2026-18614?
CVE-2026-18614 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 found in GL-iNet GL-MT3000 up to 4.4.5. Impacted is the function s2s.enable_echo_server of the file /cgi-bin/glc of the component s2s.so Native Plugin. Performing a manipulation of the argument port results in command injection. The attack may be initiated remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure and confirmed the existence of the vulnerability.
Which versions are affected by CVE-2026-18614?
How do I fix CVE-2026-18614?
No fix has been published for CVE-2026-18614 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-2026-18614 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-18614 exists.
Sources
Also known as GHSA-r4vc-wqp8-j499.