CVE-2025-7704 Supermicro BMC SMASH services has a Stack-based buffer overflow vulnerability

Medium 5.4 Published Updated

A stack-based buffer overflow in Supermicro BMC SMASH services allows attackers to execute arbitrary code or escalate privileges.

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-2025-7704?

CVE-2025-7704 is a medium-severity memory corruption vulnerability in SMCI SYS-111C-NR, published on 13 Nov 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Supermicro BMC Insyde SMASH shell program has a stacked-based overflow vulnerability

Weakness: CWE-121

Which versions are affected by CVE-2025-7704?

How do I fix CVE-2025-7704?

No fix has been published for CVE-2025-7704 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-2025-7704 being exploited?

There is no known exploitation of CVE-2025-7704 in the wild and no public exploit code.

Sources

Also known as GHSA-f7q5-j64x-4x4p.

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