CVE-2026-14721

UTT · HiPER 1250GW

The UTT HiPER 1250GW router is vulnerable to a stack-based buffer overflow, which may lead to memory corruption and potential unauthorized command execution.

Executive summary

A stack-based buffer overflow in the UTT HiPER 1250GW router exposes the device to memory corruption and potential remote code execution.

Vulnerability

The device is susceptible to a stack-based buffer overflow (CWE-121) and general memory corruption (CWE-119). An authenticated attacker can exploit this vulnerability by sending specially crafted requests to the device, potentially overwriting memory and executing arbitrary code.

Business impact

With a CVSS score of 8.8, this vulnerability poses a severe risk to network infrastructure. Exploitation could lead to a complete denial of service or full remote control of the gateway, allowing attackers to intercept traffic, modify network configurations, or pivot into the internal network.

Remediation

Immediate Action: Check the UTT support portal for firmware updates addressing this memory corruption flaw and apply them to all affected HiPER 1250GW devices.

Proactive Monitoring: Monitor network traffic for anomalous behavior originating from or directed at the management interface of the gateway.

Compensating Controls: If a patch is unavailable, isolate the management interface of the device from the public internet and restrict access to specific, trusted management workstations.

Exploitation status

Public Exploit Available: false

Analyst recommendation

Network gateways are critical infrastructure; vulnerabilities of this nature can lead to total network compromise. Security teams must ensure that firmware is kept current and that management interfaces are never exposed to the public internet to prevent exploitation of this buffer overflow.