CVE-2026-10871 Shibby Tomato Web UI rc start_6rd_tunnel os command injection
Remote attackers can execute arbitrary OS commands via the Web UI's 6rd tunnel configuration 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-2026-10871?
CVE-2026-10871 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 vulnerability has been found in Shibby Tomato 1.28.0000. This vulnerability affects the function start_6rd_tunnel of the file /sbin/rc of the component Web UI. Such manipulation of the argument ipv6_6rd_borderrelay leads to os command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. This project is superseded by FreshTomato.
Which versions are affected by CVE-2026-10871?
How do I fix CVE-2026-10871?
No fix has been published for CVE-2026-10871 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-2026-10871 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-10871 exists.
Sources
Also known as GHSA-c765-prxh-h25f.