CVE-2026-78170 UTT HiPER 1200GW formConfigFastDirectionW strcpy buffer overflow

High 8.7 Published Updated

Remote attackers can trigger a buffer overflow in the UTT HiPER 1200GW router via the ssid 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-2026-78170?

CVE-2026-78170 is a high-severity memory corruption vulnerability in UTT HiPER 1200GW, published on 24 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A flaw has been found in UTT HiPER 1200GW up to 2.5.3-170306. Affected is the function strcpy of the file /goform/formConfigFastDirectionW. Executing a manipulation of the argument ssid can lead to buffer overflow. The attack may be performed from remote. The exploit has been published and may be used.

Weakness: CWE-120, CWE-119

Which versions are affected by CVE-2026-78170?

How do I fix CVE-2026-78170?

No fix has been published for CVE-2026-78170 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-2026-78170 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-78170 exists.

Sources

Also known as GHSA-j7vq-hghc-6ppc.

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