Stack-Based Buffer Overflow in TOTOLINK A3002R Router
CVE-2025-6486

8.7HIGH

Key Information:

Vendor

Totolink
Status
A3002r
Vendor
CVE Published:
22 June 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-6486?

A stack-based buffer overflow vulnerability exists in the TOTOLINK A3002R router, specifically in the formWlanMultipleAP function located at /boafrm/formWlanMultipleAP. An attacker can exploit this vulnerability by manipulating the submit-url argument, which allows for remote code execution due to insufficient input validation. This flaw poses serious risks as it may enable unauthorized access and potential control over the affected device. The vulnerability has been disclosed publicly, raising concerns about its exploitation in the wild.

Affected Version(s)

A3002R 1.1.1-B20200824.0128

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-2025-6486 - Proof of Concept

References

https://vuldb.com/?id.313594
vdb-entrytechnical-description
https://vuldb.com/?ctiid.313594
signaturepermissions-required
https://vuldb.com/?submit.600728
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

pjq123 (VulDB User)
.
CVE-2025-6486 : Stack-Based Buffer Overflow in TOTOLINK A3002R Router