Buffer Overflow Vulnerability in UGREEN DH2100+ NAS Device
CVE-2025-14187

8.6HIGH

Key Information:

Vendor

Ugreen

Status
Dh2100+
Vendor
CVE Published:
7 December 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-14187?

A security weakness has been identified in the UGREEN DH2100+ NAS device specifically within the function handler_file_backup_create. This vulnerability affects the /v1/file/backup/create file in the nas_svr component. By manipulating the argument path, an attacker can cause a buffer overflow, which may lead to unauthorized remote access and execution of arbitrary code. The exploit for this vulnerability has been publicly disclosed, potentially allowing malicious actors to take advantage of affected systems. Despite attempts to inform the vendor of this critical issue, no response has been received.

Affected Version(s)

DH2100+ 5.3.0.251125

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-2025-14187 - Proof of Concept

References

https://vuldb.com/?id.334607
vdb-entrytechnical-description
https://vuldb.com/?ctiid.334607
signaturepermissions-required
https://vuldb.com/?submit.698652
third-party-advisory

CVSS V4

Score:
8.6
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

renguangyue (VulDB User)
JSON
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CVE-2025-14187 : Buffer Overflow Vulnerability in UGREEN DH2100+ NAS Device