CVE-2026-9632: UTT HiPER 1250GW stack overflow in formGroupConfig

CVE-2026-9632 · Severity: high · CVSS 8.8 · Published 2026-05-27

A security vulnerability exists in the UTT HiPER 1250GW enterprise router, a device used to manage network traffic and security for businesses. An attacker can exploit a flaw in the device's web management interface to cause a system crash or potentially take full control of the router. This could lead to a complete disruption of internet services or unauthorized access to the internal corporate network.

Technologies: UTT HiPER 1250GW. Vendors: UTT.

Quick answers

Is CVE-2026-9632 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-9632 being exploited in the wild.
How severe is CVE-2026-9632?
High severity, with a CVSS score of 8.8, published 27 May 2026.
Which products and versions are affected?
UTT HiPER 1250GW up to 3.2.7-210907-180535.
Is there a fix for CVE-2026-9632?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-9632 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-9632?
Check whether you run UTT HiPER 1250GW at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A stack-based buffer overflow vulnerability exists in the UTT HiPER 1250GW router firmware up to version 3.2.7-210907-180535. The flaw is located in the '/goform/formGroupConfig' endpoint within the Web Management Interface. The root cause is the unsafe use of the 'strcpy' function when processing the 'Profile' (or 'notes') argument, which fails to validate the length of user-supplied input before copying it to a fixed-size stack buffer. An attacker with low-privileged access to the web interface can send a specially crafted POST request with an oversized string to trigger the overflow. This can result in a denial of service (system crash) or potentially remote code execution. A public proof-of-concept exploit has been disclosed.

Affected products

  • UTT HiPER 1250GW up to 3.2.7-210907-180535

Timeline

  • 2026-05-27: disclosed: Vulnerability details and POC published by researcher luozhibo-sec
  • 2026-05-27: advisory: NVD and VulDB published advisory details

References

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