CVE-2026-4318 UTT HiPER 810G formApLbConfig strcpy buffer overflow

High 8.7 Published Updated

Remote attackers can trigger a buffer overflow in the load balancing configuration interface of UTT HiPER 810G devices, potentially leading to code execution or service disruption.

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-2026-4318?

CVE-2026-4318 is a high-severity memory corruption vulnerability in UTT HiPER 810G, published on 17 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability was determined in UTT HiPER 810G up to 1.7.7-171114. Affected is the function strcpy of the file /goform/formApLbConfig. This manipulation of the argument loadBalanceNameOld causes buffer overflow. The attack can be initiated remotely. The exploit has been publicly disclosed and may be utilized.

Weakness: CWE-120, CWE-119

Which versions are affected by CVE-2026-4318?

How do I fix CVE-2026-4318?

No fix has been published for CVE-2026-4318 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-2026-4318 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-4318 exists.

Sources

Also known as GHSA-4hv2-747h-9q94.

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