CVE-2026-18898
Received Received - Intake

Stack-Based Buffer Overflow in UTT HiPER 1200GW

Publication date: 2026-08-05

Last updated on: 2026-08-05

Assigner: VulDB

Description
A security flaw has been discovered in UTT HiPER 1200GW up to v2.5.3-170306. This affects the function strcpy of the file /goform/ConfigAdvideo. The manipulation of the argument timestart results in stack-based buffer overflow. The attack can be launched remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

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Meta Information

Published
2026-08-05
Last Modified
2026-08-05
Generated
2026-08-05
AI Q&A
2026-08-05
EPSS Evaluated
N/A
NVD
CVE-2026-18898
EUVD
EUVD-2026-53027

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
utt hiper_1200gw to 2.5.3-170306 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-119 The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
CWE-121 A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).

Attack-Flow Graph

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Executive Summary

CVE-2026-18898 is a stack-based buffer overflow vulnerability in the UTT HiPER 1200GW router firmware up to v2.5.3-170306. It occurs in the /goform/ConfigAdvideo endpoint due to improper boundary checks in the strcpy function when processing the 'timestart' argument. Attackers can exploit this by sending malicious input to trigger a buffer overflow, potentially leading to remote code execution or denial of service.

Detection Guidance

To detect this vulnerability, scan your network for devices running UTT HiPER 1200GW firmware versions up to v2.5.3-170306. Check for open ports and endpoints like /goform/ConfigAdvideo. Use network scanners like Nmap to identify vulnerable devices by querying the specific endpoint.

Impact Analysis

This vulnerability allows remote attackers to execute arbitrary code or crash the device by sending specially crafted requests. It could lead to unauthorized access, data theft, or disruption of network services if the router is exposed to the internet. Users should update firmware immediately to mitigate risks.

Compliance Impact

This vulnerability does not directly affect compliance with GDPR or HIPAA as it is a technical flaw in a network device. However, if exploited, it could lead to unauthorized access or data breaches, which may violate GDPR's data protection requirements or HIPAA's security rules depending on the data processed by the device.

Mitigation Strategies

Immediately update the firmware of UTT HiPER 1200GW to the latest version if available. If no update exists, isolate the device from the network to prevent remote exploitation. Disable access to the /goform/ConfigAdvideo endpoint if possible. Monitor network traffic for suspicious POST requests targeting this endpoint.

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