CVE-2026-18897
Received Received - Intake

Stack-Based Buffer Overflow in UTT HiPER 1250GW

Vulnerability report for CVE-2026-18897, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-08-05

Last updated on: 2026-08-05

Assigner: VulDB

Description

A vulnerability was identified in UTT HiPER 1250GW up to v3.2.7-210907-180535. The impacted element is the function strcpy of the file /goform/getOneApConfTempEntry. The manipulation of the argument tempName leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS Scores

EPSS Scores

Probability:
Percentile:

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
EUVD

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
utt hiper_1250gw to 3.2.7-210907-180535 (inc)

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
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

AI Quick Actions

Instant insights powered by AI
Executive Summary

CVE-2026-18897 is a stack-based buffer overflow vulnerability in the UTT HiPER 1250GW router firmware up to v3.2.7-210907-180535. It occurs in the /goform/getOneApConfTempEntry function due to an insecure strcpy operation. Attackers can exploit this by sending a crafted HTTP POST request with an overly long tempName parameter, causing a buffer overflow.

Detection Guidance

To detect this vulnerability, monitor network traffic for HTTP POST requests targeting the /goform/getOneApConfTempEntry endpoint with unusually long tempName parameters. Check router logs for crashes or unusual behavior in UTT HiPER 1250GW devices running firmware up to v3.2.7-210907-180535.

Impact Analysis

This vulnerability can lead to denial of service attacks, potentially disrupting network operations. Since it is remotely exploitable, attackers could crash the router or gain unauthorized access to network resources. The public availability of exploit code increases the risk of real-world attacks.

Compliance Impact

This vulnerability does not directly impact 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 disruption of services, potentially violating data protection requirements under these regulations.

Mitigation Strategies

Immediately update the UTT HiPER 1250GW firmware to the latest version if available. If no update exists, restrict access to the /goform/getOneApConfTempEntry endpoint via firewall rules and disable unnecessary services. Monitor for exploit attempts and isolate affected devices from critical network segments.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-18897. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart