CVE-2025-51630 — CRITICAL (9.8)

Vulnerability Description

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

CVSS Score

9.8

CRITICAL

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Totolink	N350Rt Firmware	9.3.5u.6139_b20201216
Totolink	N350Rt	-

Related Weaknesses (CWE)

CWE-120

References

https://github.com/luckysmallbird/Totolink-N350RT-Vulnerability/blob/main/1-ePorExploitThird Party Advisory
https://github.com/luckysmallbird/Totolink-N350RT-Vulnerability/blob/main/1-ePorExploitThird Party Advisory

FAQ

What is CVE-2025-51630?

CVE-2025-51630 is a vulnerability with a CVSS score of 9.8 (CRITICAL). TOTOLINK N350RT V9.3.5u.6139_B20201216 was discovered to contain a buffer overflow via the ePort parameter in the function setIpPortFilterRules.

How severe is CVE-2025-51630?

CVE-2025-51630 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2025-51630?

Check the references section above for vendor advisories and patch information. Affected products include: Totolink N350Rt Firmware, Totolink N350Rt.