CVE-2026-15547 Shibby Tomato CIFS Mount sub_2D048 os command injection

Medium 5.3 Published Updated

Remote attackers can execute arbitrary OS commands via CIFS mount arguments in Shibby Tomato firmware, which is now end-of-life.

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-2026-15547?

CVE-2026-15547 is a medium-severity command injection vulnerability in Shibby Tomato, published on 13 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A weakness has been identified in Shibby Tomato up to 1.28.0000. This affects the function sub_2D048 of the component CIFS Mount Handler. Executing a manipulation of the argument cifs1/cifs2 can lead to os command injection. The attack can be executed remotely. The exploit has been made available to the public and could be used for attacks. This project is superseded by FreshTomato.

Weakness: CWE-78, CWE-77

Which versions are affected by CVE-2026-15547?

How do I fix CVE-2026-15547?

No fix has been published for CVE-2026-15547 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-2026-15547 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-15547 exists.

Sources

Also known as GHSA-fv5c-8924-mvcw.

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