CVE-2026-9628 UTT HiPER 1200GW Web Management formPptpClientConfig stack-based overflow

High 8.7 Published Updated

Remote attackers can trigger a stack-based buffer overflow in the web management interface, potentially leading to code execution or denial of service.

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-2026-9628?

CVE-2026-9628 is a high-severity memory corruption vulnerability in UTT HiPER 1200GW, published on 27 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A weakness has been identified in UTT HiPER 1200GW up to 2.5.3-170306. Affected is an unknown function of the file /goform/formPptpClientConfig of the component Web Management Interface. This manipulation of the argument PPTP server address/username/password/tunnel name causes stack-based buffer overflow. The attack may be initiated remotely. The exploit has been made available to the public and could be used for attacks.

Weakness: CWE-121, CWE-119

Which versions are affected by CVE-2026-9628?

How do I fix CVE-2026-9628?

No fix has been published for CVE-2026-9628 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-2026-9628 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-9628 exists.

Sources

Also known as GHSA-82pj-c6qc-rcq2.

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