CVE-2026-10292: UTT HiPER 1200GW Buffer Overflow Flaw

CVE-2026-10292 Overview

CVE-2026-10292 is a stack-based buffer overflow in the UTT HiPER 1200GW router through firmware version 2.5.3-170306. The flaw resides in the strcpy call within the /goform/formTaskEdit handler. An authenticated remote attacker can send crafted input to trigger memory corruption on the device stack. According to the public advisory, a working exploit has been disclosed publicly. The weakness is classified as [CWE-119] (Improper Restriction of Operations within the Bounds of a Memory Buffer).

Critical Impact
Remote attackers with low privileges can corrupt stack memory on the router, potentially leading to arbitrary code execution or denial of service against the network gateway.

Affected Products

UTT HiPER 1200GW router
Firmware versions up to and including 2.5.3-170306
Web management endpoint /goform/formTaskEdit

Discovery Timeline

2026-06-01 - CVE-2026-10292 published to the National Vulnerability Database
2026-06-02 - Last updated in NVD database

Technical Details for CVE-2026-10292

Vulnerability Analysis

The vulnerability exists in the HTTP request handler bound to /goform/formTaskEdit in the HiPER 1200GW web management interface. The handler calls strcpy to copy attacker-controlled request parameters into a fixed-size stack buffer without validating the input length. When the supplied value exceeds the destination buffer size, adjacent stack memory — including saved registers and the return address — is overwritten.

Because the device is an embedded MIPS/ARM router running with elevated privileges in firmware, successful exploitation can yield full control of the gateway. The attack requires only network reachability to the management interface and a low-privileged authenticated session, per the CVSS 4.0 vector indicating PR:L.

Root Cause

The root cause is the unsafe use of strcpy without bounds checking on data sourced from an HTTP request parameter handled by formTaskEdit. The function lacks any preceding length validation or use of bounded string operations such as strncpy or snprintf. This is a classic [CWE-119] pattern common in legacy embedded web servers.

Attack Vector

An attacker sends a POST request to /goform/formTaskEdit containing an oversized parameter value. The router's web server passes the value directly into the vulnerable strcpy, overflowing the stack buffer. Depending on stack layout and any compile-time mitigations on the firmware build, the attacker can hijack control flow or crash the daemon. Public exploit material referenced by VulDB is available, increasing the practical risk to exposed devices. See the GitHub CVE Documentation and VulDB Vulnerability Details for additional technical context.

Detection Methods for CVE-2026-10292

Indicators of Compromise

Unexpected reboots or crashes of the HiPER 1200GW management daemon
HTTP POST requests to /goform/formTaskEdit containing abnormally long parameter values
Unauthenticated configuration changes or new administrative sessions following oversized requests
Outbound connections from the router to unfamiliar hosts after suspicious management traffic

Detection Strategies

Inspect web server and reverse-proxy logs for POST requests to /goform/formTaskEdit with parameter lengths beyond expected field sizes
Deploy network intrusion detection signatures matching oversized form fields targeting /goform/ endpoints on UTT devices
Alert on repeated HTTP 5xx responses or session resets from the router's management interface

Monitoring Recommendations

Forward router syslog and HTTP access logs to a central SIEM for length-based anomaly detection on management URIs
Baseline normal administrative request sizes and trigger alerts on outliers targeting formTaskEdit
Monitor for changes to router firmware integrity, running processes, and persistent configuration files

How to Mitigate CVE-2026-10292

Immediate Actions Required

Restrict access to the router's web management interface to trusted management VLANs or jump hosts only
Disable WAN-side administration on any HiPER 1200GW unit that exposes /goform/ endpoints to the internet
Rotate administrative credentials and review account activity for unauthorized logins
Inventory all UTT HiPER 1200GW devices and confirm firmware version against 2.5.3-170306

Patch Information

At the time of publication, no vendor patch has been identified in the referenced advisories. Monitor the VulDB CVE Data entry and UTT's official channels for an updated firmware release that replaces the unsafe strcpy call with bounded string handling.

Workarounds

Place the device behind an upstream firewall that filters HTTP/HTTPS requests to /goform/formTaskEdit
Apply ACLs to permit management access only from a defined administrative subnet
Where feasible, replace end-of-life HiPER 1200GW units with supported hardware that receives current security updates

bash

# Example ACL: restrict management interface to a trusted subnet
# (apply on the upstream firewall or router uplink)
access-list MGMT_ONLY permit tcp 10.10.0.0 0.0.0.255 host <router_ip> eq 80
access-list MGMT_ONLY permit tcp 10.10.0.0 0.0.0.255 host <router_ip> eq 443
access-list MGMT_ONLY deny   tcp any host <router_ip> eq 80
access-list MGMT_ONLY deny   tcp any host <router_ip> eq 443