Buffer Overflow Vulnerability in UTT HiPER 1250GW by UTT
CVE-2026-76004

9.4CRITICAL

Key Information:

Vendor

Utt

Status
Hiper 1250gw
Vendor
CVE Published:
19 August 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-76004?

A vulnerability in the UTT HiPER 1250GW's HTTP Handler component enables stack-based buffer overflow through improper handling of pvid in the strcpy function. This security weakness permits remote attackers to exploit the flaw, potentially leading to unauthorized access and system compromise. The vulnerability affects versions of the product up to 3.2.7-210907-180535 and has been publicly disclosed, making awareness and remediation critical for affected users.

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-2026-76004 - Proof of Concept

References

https://vuldb.com/vuln/391920
vdb-entrytechnical-description
https://vuldb.com/vuln/391920/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-76004
third-party-advisory

CVSS V4

Score:
9.4
Severity:
CRITICAL
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)
.