CVE-2025-10392 Mercury KM08-708H GiGA WiFi Wave2 HTTP Header stack-based overflow

Critical 9.3 Published Updated

Remote attackers can trigger a stack-based buffer overflow in the HTTP header handler of Mercury WiFi routers, potentially leading to code execution or service disruption.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-10392?

CVE-2025-10392 is a critical memory corruption vulnerability in Mercury KM08-708H GiGA WiFi Wave2, published on 14 Sep 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability was detected in Mercury KM08-708H GiGA WiFi Wave2 1.1.14. This affects an unknown function of the component HTTP Header Handler. The manipulation of the argument Host results in stack-based buffer overflow. The attack can be executed remotely. The exploit is now public and may be used.

Weakness: CWE-121, CWE-119

Which versions are affected by CVE-2025-10392?

How do I fix CVE-2025-10392?

No fix has been published for CVE-2025-10392 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-2025-10392 being exploited?

There is no known exploitation of CVE-2025-10392 in the wild and no public exploit code.

Sources

Also known as GHSA-26gv-x98q-gqcw.

Is CVE-2025-10392 in your software?

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