Buffer Overflow Vulnerability in TOTOLINK A3002RU Network Device
CVE-2025-6163

8.7HIGH

Key Information:

Vendor

Totolink
Status
A3002ru
Vendor
CVE Published:
17 June 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-6163?

A critical buffer overflow vulnerability exists in the HTTP POST Request Handler of the TOTOLINK A3002RU network device. This flaw is triggered by improper handling of the 'submit-url' argument, which could be exploited remotely. Attackers may use this vulnerability to execute arbitrary code, posing a significant risk to the device and potentially compromising the network security.

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-2025-6163 - Proof of Concept

References

https://vuldb.com/?id.312638
vdb-entrytechnical-description
https://vuldb.com/?ctiid.312638
signaturepermissions-required
https://vuldb.com/?submit.593601
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

Lena-lyy02 (VulDB User)
JSON
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CVE-2025-6163 : Buffer Overflow Vulnerability in TOTOLINK A3002RU Network Device