CVE-2026-38142 Command injection in n/a
Unauthenticated attackers can execute arbitrary commands on Tenda AC18 routers via a crafted payload in the mac parameter.
- 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-2026-38142?
CVE-2026-38142 is a medium-severity command injection vulnerability in n/a, published on 1 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An unauthenticated command injection vulnerability in the /goform/fast_setting_internet_set endpoint of Tenda AC18 v15.03.05.05 allows attackers to execute arbitrary commands via a crafted payload injected into the mac parameter.
Weakness: CWE-77
Which versions are affected by CVE-2026-38142?
How do I fix CVE-2026-38142?
No fix has been published for CVE-2026-38142 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-2026-38142 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-38142 exists.
Sources
Also known as GHSA-f7fp-jm38-ghww.