Buffer Overflow Vulnerability in TOTOLINK A3002RU Router
CVE-2025-6148

8.7HIGH

Key Information:

Vendor

Totolink
Status
A3002ru
Vendor
CVE Published:
17 June 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-6148?

A severe vulnerability has been discovered in the TOTOLINK A3002RU Router, specifically affecting version 3.0.0-B20230809.1615. This flaw resides within the HTTP POST Request Handler, where improper handling of the submit-url argument can lead to a buffer overflow. Attackers may exploit this vulnerability remotely, allowing unauthorized access and manipulation of the device. It is crucial for users to remain vigilant and apply any available updates to mitigate potential risks.

Affected Version(s)

A3002RU 3.0.0-B20230809.1615

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-2025-6148 - Proof of Concept

References

https://vuldb.com/?id.312623
vdb-entrytechnical-description
https://vuldb.com/?ctiid.312623
signaturepermissions-required
https://vuldb.com/?submit.593018
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

.