Buffer Overflow in TOTOLINK N150RT Router
CVE-2025-3990

8.7HIGH

Key Information:

Vendor

Totolink
Status
N150rt
Vendor
CVE Published:
27 April 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-3990?

A buffer overflow vulnerability exists in the TOTOLINK N150RT router due to a flaw in the processing of the submit-url argument in the /boafrm/formVlan file. This vulnerability can be exploited remotely, allowing an attacker to manipulate the affected functionality. Successful exploitation can lead to unexpected behavior in the system, potentially allowing an unauthorized user to execute arbitrary code. Users are advised to review available patches and security updates to mitigate this threat.

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-2025-3990 - Proof of Concept

References

https://vuldb.com/?id.306326
vdb-entrytechnical-description
https://vuldb.com/?ctiid.306326
signaturepermissions-required
https://vuldb.com/?submit.557941
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

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CVE-2025-3990 : Buffer Overflow in TOTOLINK N150RT Router