CVE-2026-16096 Shibby Tomato webmon_recent_domains sub_40BB50 stack-based overflow
Remote attackers can exploit a stack-based buffer overflow in Shibby Tomato firmware to execute arbitrary code, requiring migration to FreshTomato.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-16096?
CVE-2026-16096 is a high-severity memory corruption vulnerability in Shibby Tomato, published on 18 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability has been found in Shibby Tomato 1.28 RT-N5x MIPSR2 Build 124. This affects the function sub_40BB50 of the file /proc/webmon_recent_domains. The manipulation leads to stack-based buffer overflow. It is possible to initiate the attack remotely. This project is superseded by FreshTomato.
Which versions are affected by CVE-2026-16096?
How do I fix CVE-2026-16096?
No fix has been published for CVE-2026-16096 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-16096 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-16096 exists.
Sources
Also known as GHSA-3pw4-v8p8-wpvg.