CVE-2025-51630

CRITICAL

Published Jul 17, 2025 Modified Jul 18, 2025 CWE-120

Description

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

CVSS v3.1 Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-120 CWE-120

Affected Products

Vendor	Product	Versions
totolink	n350rt_firmware	All
totolink	n350rt	All

References

Exploits

https://github.com/luckysmallbird/Totolink-N350RT-Vulnerability/blob/main/1-ePort.md https://github.com/luckysmallbird/Totolink-N350RT-Vulnerability/blob/main/1-ePort.md

Frequently Asked Questions

What is CVE-2025-51630? +

TOTOLINK N350RT V9.3.5u.6139_B20201216 was discovered to contain a buffer overflow via the ePort parameter in the function setIpPortFilterRules. It has a CVSS v3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2025-51630? +

CVE-2025-51630 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.

What products are affected by CVE-2025-51630? +

CVE-2025-51630 affects products from totolink, specifically: n350rt, n350rt_firmware. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-51630? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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Quick Facts

CVSS Score: 9.8
Severity: CRITICAL
Published: Jul 17, 2025

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