Buffer Overflow Vulnerability in UTT HiPER 2620G Product by UTT
CVE-2025-11653

8.7HIGH

Key Information:

Vendor

Utt

Status
Hiper 2620g
Vendor
CVE Published:
13 October 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-11653?

A vulnerability exists in the UTT HiPER 2620G, specifically in the 'strcpy' function found in the '/goform/fNTP' file. This flaw arises from improper handling of the 'NTPServerIP' argument, leading to a buffer overflow. This vulnerability can be exploited remotely, enabling attackers to execute arbitrary code or disrupt services. Despite early disclosure attempts to the vendor, there has been no response regarding mitigations or fixes. Organizations using affected versions (up to 3.1.4) should take immediate precautions to secure their devices.

Affected Version(s)

HiPER 2620G 3.1.0

HiPER 2620G 3.1.1

HiPER 2620G 3.1.2

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-2025-11653 - Proof of Concept

References

https://vuldb.com/?id.328070
vdb-entrytechnical-description
https://vuldb.com/?ctiid.328070
signaturepermissions-required
https://vuldb.com/?submit.665712
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

DuXinxing (VulDB User)
JSON
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CVE-2025-11653 : Buffer Overflow Vulnerability in UTT HiPER 2620G Product by UTT