9.8
CRITICAL CVSS 3.1
CVE-2025-51630
TOTOLINK N350RT Buffer Overflow Vulnerability
Description

TOTOLINK N350RT V9.3.5u.6139_B20201216 was discovered to contain a buffer overflow via the ePort parameter in the function setIpPortFilterRules.

INFO

Published Date :

July 17, 2025, 2:15 p.m.

Last Modified :

July 18, 2025, 5:25 p.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2025-51630 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Totolink n350rt_firmware
2 Totolink n350rt
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 CRITICAL 134c704f-9b21-4f2e-91b3-4a467353bcc0
Solution
Update the device firmware to resolve the buffer overflow vulnerability.
  • Update the device firmware to the latest version.
  • Verify that the buffer overflow vulnerability is no longer present.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2025-51630.

URL Resource
https://github.com/luckysmallbird/Totolink-N350RT-Vulnerability/blob/main/1-ePort.md Exploit Third Party Advisory
https://github.com/luckysmallbird/Totolink-N350RT-Vulnerability/blob/main/1-ePort.md Exploit Third Party Advisory
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-51630 is associated with the following CWEs:

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-51630 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2025-51630 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Initial Analysis by [email protected]

    Jul. 18, 2025

    Action Type Old Value New Value
    Added CPE Configuration AND OR *cpe:2.3:o:totolink:n350rt_firmware:9.3.5u.6139_b20201216:*:*:*:*:*:*:* OR cpe:2.3:h:totolink:n350rt:-:*:*:*:*:*:*:*
    Added Reference Type CISA-ADP: https://github.com/luckysmallbird/Totolink-N350RT-Vulnerability/blob/main/1-ePort.md Types: Exploit, Third Party Advisory
    Added Reference Type MITRE: https://github.com/luckysmallbird/Totolink-N350RT-Vulnerability/blob/main/1-ePort.md Types: Exploit, Third Party Advisory
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Jul. 17, 2025

    Action Type Old Value New Value
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Added CWE CWE-120
    Added Reference https://github.com/luckysmallbird/Totolink-N350RT-Vulnerability/blob/main/1-ePort.md
  • New CVE Received by [email protected]

    Jul. 17, 2025

    Action Type Old Value New Value
    Added Description TOTOLINK N350RT V9.3.5u.6139_B20201216 was discovered to contain a buffer overflow via the ePort parameter in the function setIpPortFilterRules.
    Added Reference https://github.com/luckysmallbird/Totolink-N350RT-Vulnerability/blob/main/1-ePort.md
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 9.8
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact