CVE-2026-10067 Shibby Tomato multimon.cgi sub_90F0 stack-based overflow

High 8.7 Published Updated

Remote attackers can exploit a stack-based buffer overflow in Shibby Tomato's multimon.cgi to execute arbitrary code on unsupported devices.

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-2026-10067?

CVE-2026-10067 is a high-severity memory corruption vulnerability in Shibby Tomato, published on 29 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability was detected in Shibby Tomato 1.28. Impacted is the function sub_90F0 of the file multimon.cgi. The manipulation results in stack-based buffer overflow. The attack can be launched remotely. This project is superseded by FreshTomato. This vulnerability only affects products that are no longer supported by the maintainer.

Weakness: CWE-121, CWE-119

Which versions are affected by CVE-2026-10067?

How do I fix CVE-2026-10067?

No fix has been published for CVE-2026-10067 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-2026-10067 being exploited?

There is no known exploitation of CVE-2026-10067 in the wild and no public exploit code.

Sources

Also known as GHSA-7mrh-whj9-f675.

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