Buffer Overflow Vulnerability in TOTOLINK A3002R Router
CVE-2025-6149

8.7HIGH

Key Information:

Vendor

Totolink
Status
A3002r
Vendor
CVE Published:
17 June 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-6149?

A buffer overflow vulnerability exists in the HTTP POST Request Handler of the TOTOLINK A3002R router, specifically in the /boafrm/formSysLog component. The vulnerability can be exploited by manipulating the 'submit-url' argument, allowing remote attackers to execute arbitrary code. This exploitation capability poses significant risks, as it has become public knowledge, making affected systems vulnerable to unauthorized access and control.

Affected Version(s)

A3002R 4.0.0-B20230531.1404

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-2025-6149 - Proof of Concept

References

https://vuldb.com/?id.312624
vdb-entrytechnical-description
https://vuldb.com/?ctiid.312624
signaturepermissions-required
https://vuldb.com/?submit.593019
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)
.
CVE-2025-6149 : Buffer Overflow Vulnerability in TOTOLINK A3002R Router