Buffer Overflow Vulnerability in UTT 进取 520W Router by UTT
CVE-2025-15459

8.7HIGH

Key Information:

Vendor

Utt

Status
进取 520w
Vendor
CVE Published:
5 January 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-15459?

A security vulnerability has been identified in the UTT 进取 520W router, specifically in the strcpy function located in the /goform/formUser file. This vulnerability can be exploited remotely due to improper handling of user input, leading to a buffer overflow when the passwd1 argument is manipulated. The implications of this vulnerability may allow an attacker to execute arbitrary code on the device, resulting in unauthorized control or access. The issue was disclosed publicly, highlighting the urgency for users to patch affected versions, yet the vendor did not respond to initial notifications regarding this vulnerability.

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Deploy the Patch

Affected Version(s)

进取 520W 1.7.7-180627

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-2025-15459 - Proof of Concept

References

https://vuldb.com/?id.339495
vdb-entrytechnical-description
https://vuldb.com/?ctiid.339495
signaturepermissions-required
https://vuldb.com/?submit.725816
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

cymiao (VulDB User)
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