Stack-Based Buffer Overflow Vulnerability in UTT HiPER 1250GW Router
CVE-2026-18897

8.7HIGH

Key Information:

Vendor

Utt

Status
Hiper 1250gw
Vendor
CVE Published:
5 August 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-18897?

A stack-based buffer overflow vulnerability has been identified in the UTT HiPER 1250GW router, specifically within the strcpy function of the /goform/getOneApConfTempEntry file. By manipulating the tempName argument, an attacker can exploit this flaw remotely, potentially compromising the device. Publicly available exploit code increases the risk, especially given the vendor's lack of response to earlier disclosure attempts. Organizations using affected versions should apply the necessary patches immediately to mitigate potential threats.

Affected Version(s)

HiPER 1250GW v3.2.7-210907-180535

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-18897 - Proof of Concept

References

https://vuldb.com/vuln/385932
vdb-entrytechnical-description
https://vuldb.com/vuln/385932/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-18897
third-party-advisory

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

yecp (VulDB User)
VulDB CNA Team
.