Buffer Overflow Vulnerability in UTT HiPER 840G API
CVE-2025-6732

8.7HIGH

Key Information:

Vendor

Utt

Status
Hiper 840g
Vendor
CVE Published:
26 June 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-6732?

A significant buffer overflow vulnerability exists in the UTT HiPER 840G API due to improper handling of the 'passwd1' argument within the 'strcpy' function located in the '/goform/setSysAdm' file. This flaw potentially allows remote attackers to manipulate the system, leading to unauthorized access or control over the affected device. The vulnerability affects all versions of the HiPER 840G API up to and including 3.1.1-190328. Although the vendor has been informed of the issue, there has been no public response regarding a fix or mitigation measures.

Affected Version(s)

HiPER 840G 3.1.1-190328

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-2025-6732 - Proof of Concept

References

https://vuldb.com/?id.314007
vdb-entrytechnical-description
https://vuldb.com/?ctiid.314007
signaturepermissions-required
https://vuldb.com/?submit.597677
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

yuhongxiang (VulDB User)
.
CVE-2025-6732 : Buffer Overflow Vulnerability in UTT HiPER 840G API