Buffer Overflow Vulnerability in UTT HiPER 840G API Component
CVE-2025-6734

8.7HIGH

Key Information:

Vendor

Utt

Status
Hiper 840g
Vendor
CVE Published:
26 June 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-6734?

A vulnerability exists in the UTT HiPER 840G API, specifically within the sub_484E40 function of the formP2PLimitConfig file. This weakness arises from improper handling of input arguments, leading to a potential buffer overflow scenario. Remote attackers could exploit this vulnerability by sending specially crafted requests. Despite prior notification to the vendor regarding this issue, no response has been received, raising concerns about the availability of a timely fix. Users are advised to review their systems for exposure and implement appropriate security 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-2025-6734 - Proof of Concept

References

https://vuldb.com/?id.314009
vdb-entrytechnical-description
https://vuldb.com/?ctiid.314009
signaturepermissions-required
https://vuldb.com/?submit.597679
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-2025-6734 : Buffer Overflow Vulnerability in UTT HiPER 840G API Component