Stack-Based Buffer Overflow in UTT HiPER 1250GW by UTT
CVE-2026-18895

8.7HIGH

Key Information:

Vendor

Utt

Status
Hiper 1250gw
Vendor
CVE Published:
5 August 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-18895?

A vulnerability exists in the UTT HiPER 1250GW, affecting versions up to 3.2.7-210907-180535. The flaw is found in the strcpy function within the /goform/APSecurity_5g file, which leads to a stack-based buffer overflow when the argument cipher is manipulated. This vulnerability allows for remote exploitation, potentially enabling attackers to execute arbitrary code. The issue has been publicly disclosed, and despite attempts to inform the vendor, there has been no response regarding a fix or mitigation.

Affected Version(s)

HiPER 1250GW 3.2.7-210907-180535

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-2026-18895 - Proof of Concept

References

https://vuldb.com/vuln/385930
vdb-entrytechnical-description
https://vuldb.com/vuln/385930/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-18895
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
.