CVE-2025-10756 UTT HiPER 840G getOneApConfTempEntry buffer overflow

High 8.7 Published Updated

Remote attackers can trigger a buffer overflow in the UTT HiPER 840G router via the tempName parameter, 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-2025-10756?

CVE-2025-10756 is a high-severity memory corruption vulnerability in UTT HiPER 840G, published on 20 Sep 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A security flaw has been discovered in UTT HiPER 840G up to 3.1.1-190328. Impacted is an unknown function of the file /goform/getOneApConfTempEntry. The manipulation of the argument tempName results in buffer overflow. It is possible to launch the attack remotely. The exploit has been released to the public and may be exploited. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-120, CWE-119

Which versions are affected by CVE-2025-10756?

It affects 1 product.

Products include Utt 840g Firmware.

How do I fix CVE-2025-10756?

No fix has been published for CVE-2025-10756 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-2025-10756 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-10756 exists.

Sources

Also known as GHSA-5p52-jh9x-m839.

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