CVE-2026-10870 Shibby Tomato Web UI rc start_dhcpc os command injection
Remote attackers can execute arbitrary OS commands via the Web UI start_dhcpc function in Shibby Tomato firmware.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-10870?
CVE-2026-10870 is a high-severity command injection vulnerability in Shibby Tomato, published on 4 Jun 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
A flaw has been found in Shibby Tomato 1.28.0000. This affects the function start_dhcpc of the file /sbin/rc of the component Web UI. This manipulation causes os command injection. It is possible to initiate the attack remotely. The exploit has been published and may be used. This project is superseded by FreshTomato.
Which versions are affected by CVE-2026-10870?
How do I fix CVE-2026-10870?
No fix has been published for CVE-2026-10870 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-2026-10870 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-10870 exists.
Sources
Also known as GHSA-pmrf-jcmc-23c7.