Critical severity · published Jul 17, 2025
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
9.8
CVSS
0.5%
EPSS
No
On KEV
Description
TOTOLINK N350RT V9.3.5u.6139_B20201216 was discovered to contain a buffer overflow via the ePort parameter in the function setIpPortFilterRules.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 43% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NF
N350rt Firmware · Totolink
9.3.5u.6139_b20201216 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-51630
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-51630
Exploit
https://github.com/luckysmallbird/Totolink-N350RT-Vulnerability/blob/main/1-ePort.md
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