CVE-2026-19036 Shibby Tomato wanoptions sub_40F88C os command injection
Remote attackers can execute arbitrary OS commands via the ppp_custom argument in Shibby Tomato wanoptions, requiring permissions.
- 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-2026-19036?
CVE-2026-19036 is a high-severity command injection vulnerability in Shibby Tomato, published on 6 Aug 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
A security flaw has been discovered in Shibby Tomato 1.28.0000. This affects the function sub_40F88C of the file /tmp/ppp/wanoptions. The manipulation of the argument ppp_custom results in os command injection. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks. This project is superseded by FreshTomato.
Which versions are affected by CVE-2026-19036?
How do I fix CVE-2026-19036?
No fix has been published for CVE-2026-19036 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-2026-19036 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-19036 exists.
Sources
Also known as GHSA-v799-m875-3q84.