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ID

VAR-202507-1788


CVE

CVE-2025-51630


TITLE

TOTOLINK N350RT Buffer Overflow Vulnerability

Trust: 0.6

sources: CNVD: CNVD-2025-17145

DESCRIPTION

TOTOLINK N350RT V9.3.5u.6139_B20201216 was discovered to contain a buffer overflow via the ePort parameter in the function setIpPortFilterRules. The TOTOLINK N350RT is a small home router manufactured by the Chinese company TOTOLINK. This vulnerability stems from a failure to properly validate the length of input data in the ePort parameter. A remote attacker could exploit this vulnerability to execute arbitrary code or cause a denial of service

Trust: 1.44

sources: NVD: CVE-2025-51630 // CNVD: CNVD-2025-17145

IOT TAXONOMY

category:['Network device']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2025-17145

AFFECTED PRODUCTS

vendor:totolinkmodel:n350rtscope:eqversion:9.3.5u.6139_b20201216

Trust: 1.0

vendor:totolinkmodel:n350rt v9.3.5u.6139 b20201216scope: - version: -

Trust: 0.6

sources: CNVD: CNVD-2025-17145 // NVD: CVE-2025-51630

CVSS

SEVERITY

CVSSV2

CVSSV3

134c704f-9b21-4f2e-91b3-4a467353bcc0: CVE-2025-51630
value: CRITICAL

Trust: 1.0

CNVD: CNVD-2025-17145
value: HIGH

Trust: 0.6

CNVD: CNVD-2025-17145
severity: HIGH
baseScore: 10.0
vectorString: AV:N/AC:L/AU:N/C:C/I:C/A:C
accessVector: NETWORK
accessComplexity: LOW
authentication: NONE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: 10.0
impactScore: 10.0
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.6

134c704f-9b21-4f2e-91b3-4a467353bcc0: CVE-2025-51630
baseSeverity: CRITICAL
baseScore: 9.8
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 3.9
impactScore: 5.9
version: 3.1

Trust: 1.0

sources: CNVD: CNVD-2025-17145 // NVD: CVE-2025-51630

PROBLEMTYPE DATA

problemtype:CWE-120

Trust: 1.0

sources: NVD: CVE-2025-51630

EXTERNAL IDS

db:NVDid:CVE-2025-51630

Trust: 1.6

db:CNVDid:CNVD-2025-17145

Trust: 0.6

sources: CNVD: CNVD-2025-17145 // NVD: CVE-2025-51630

REFERENCES

url:https://github.com/luckysmallbird/totolink-n350rt-vulnerability/blob/main/1-eport.md

Trust: 1.0

url:https://nvd.nist.gov/vuln/detail/cve-2025-51630

Trust: 0.6

sources: CNVD: CNVD-2025-17145 // NVD: CVE-2025-51630

SOURCES

db:CNVDid:CNVD-2025-17145
db:NVDid:CVE-2025-51630

LAST UPDATE DATE

2025-07-31T23:23:15.247000+00:00


SOURCES UPDATE DATE

db:CNVDid:CNVD-2025-17145date:2025-07-30T00:00:00
db:NVDid:CVE-2025-51630date:2025-07-18T17:25:28.600

SOURCES RELEASE DATE

db:CNVDid:CNVD-2025-17145date:2025-07-28T00:00:00
db:NVDid:CVE-2025-51630date:2025-07-17T14:15:32.080