Buffer Overflow Vulnerability in TOTOLINK N150RT Router
CVE-2025-3991

8.7HIGH

Key Information:

Vendor

Totolink
Status
N150rt
Vendor
CVE Published:
28 April 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-3991?

A buffer overflow vulnerability exists in the TOTOLINK N150RT router, specifically within the /boafrm/formWdsEncrypt file. This flaw allows attackers to manipulate the 'submit-url' argument, potentially leading to remote exploitation. Given that it has been disclosed publicly, it poses a significant risk that requires immediate attention from affected users to mitigate potential attacks.

Affected Version(s)

N150RT 3.4.0-B20190525

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-2025-3991 - Proof of Concept

References

https://vuldb.com/?id.306327
vdb-entrytechnical-description
https://vuldb.com/?ctiid.306327
signaturepermissions-required
https://vuldb.com/?submit.557942
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

.