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ID

VAR-202504-1003


CVE

CVE-2025-3666


TITLE

TOTOLINK  of  a3700r  Firmware vulnerabilities

Trust: 0.8

sources: JVNDB: JVNDB-2025-004769

DESCRIPTION

A vulnerability was found in TOTOLINK A3700R 9.1.2u.5822_B20200513 and classified as critical. Affected by this issue is the function setDdnsCfg of the file /cgi-bin/cstecgi.cgi. The manipulation leads to improper access controls. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way. TOTOLINK of a3700r There are unspecified vulnerabilities in the firmware.Information may be tampered with. TOTOLINK A3700R is a wireless router that provides network connection functions for home and small offices. No detailed vulnerability details are currently provided

Trust: 2.16

sources: NVD: CVE-2025-3666 // JVNDB: JVNDB-2025-004769 // CNVD: CNVD-2025-12019

IOT TAXONOMY

category:['Network device']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2025-12019

AFFECTED PRODUCTS

vendor:totolinkmodel:a3700rscope:eqversion:9.1.2u.5822_b20200513

Trust: 1.0

vendor:totolinkmodel:a3700rscope:eqversion:a3700r firmware 9.1.2u.5822 b20200513

Trust: 0.8

vendor:totolinkmodel:a3700rscope: - version: -

Trust: 0.8

vendor:totolinkmodel:a3700rscope:eqversion: -

Trust: 0.8

vendor:totolinkmodel:a3700r 9.1.2u.5822 b20200513scope: - version: -

Trust: 0.6

sources: CNVD: CNVD-2025-12019 // JVNDB: JVNDB-2025-004769 // NVD: CVE-2025-3666

CVSS

SEVERITY

CVSSV2

CVSSV3

cna@vuldb.com: CVE-2025-3666
value: MEDIUM

Trust: 1.0

OTHER: JVNDB-2025-004769
value: MEDIUM

Trust: 0.8

CNVD: CNVD-2025-12019
value: MEDIUM

Trust: 0.6

cna@vuldb.com: CVE-2025-3666
severity: MEDIUM
baseScore: 5.0
vectorString: AV:N/AC:L/AU:N/C:N/I:P/A:N
accessVector: NETWORK
accessComplexity: LOW
authentication: NONE
confidentialityImpact: NONE
integrityImpact: PARTIAL
availabilityImpact: NONE
exploitabilityScore: 10.0
impactScore: 2.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.0

OTHER: JVNDB-2025-004769
severity: MEDIUM
baseScore: 5.0
vectorString: AV:N/AC:L/AU:N/C:N/I:P/A:N
accessVector: NETWORK
accessComplexity: LOW
authentication: NONE
confidentialityImpact: NONE
integrityImpact: PARTIAL
availabilityImpact: NONE
exploitabilityScore: NONE
impactScore: NONE
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.8

CNVD: CNVD-2025-12019
severity: MEDIUM
baseScore: 5.0
vectorString: AV:N/AC:L/AU:N/C:N/I:P/A:N
accessVector: NETWORK
accessComplexity: LOW
authentication: NONE
confidentialityImpact: NONE
integrityImpact: PARTIAL
availabilityImpact: NONE
exploitabilityScore: 10.0
impactScore: 2.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.6

cna@vuldb.com: CVE-2025-3666
baseSeverity: MEDIUM
baseScore: 5.3
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: LOW
availabilityImpact: NONE
exploitabilityScore: 3.9
impactScore: 1.4
version: 3.1

Trust: 1.0

OTHER: JVNDB-2025-004769
baseSeverity: MEDIUM
baseScore: 5.3
vectorString: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: LOW
availabilityImpact: NONE
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

sources: CNVD: CNVD-2025-12019 // JVNDB: JVNDB-2025-004769 // NVD: CVE-2025-3666

PROBLEMTYPE DATA

problemtype:CWE-284

Trust: 1.0

problemtype:CWE-266

Trust: 1.0

problemtype:NVD-CWE-noinfo

Trust: 1.0

problemtype:Improper permission settings (CWE-266) [ others ]

Trust: 0.8

problemtype: Inappropriate access control (CWE-284) [ others ]

Trust: 0.8

problemtype: Lack of information (CWE-noinfo) [NVD evaluation ]

Trust: 0.8

sources: JVNDB: JVNDB-2025-004769 // NVD: CVE-2025-3666

EXTERNAL IDS

db:NVDid:CVE-2025-3666

Trust: 3.2

db:VULDBid:304844

Trust: 2.4

db:JVNDBid:JVNDB-2025-004769

Trust: 0.8

db:CNVDid:CNVD-2025-12019

Trust: 0.6

sources: CNVD: CNVD-2025-12019 // JVNDB: JVNDB-2025-004769 // NVD: CVE-2025-3666

REFERENCES

url:https://vuldb.com/?id.304844

Trust: 2.4

url:https://lavender-bicycle-a5a.notion.site/totolink-a3700r-setddnscfg-1cb53a41781f8001b9c0f345a120e2e7?pvs=4

Trust: 1.8

url:https://vuldb.com/?submit.551298

Trust: 1.8

url:https://www.totolink.net/

Trust: 1.8

url:https://vuldb.com/?ctiid.304844

Trust: 1.0

url:https://nvd.nist.gov/vuln/detail/cve-2025-3666

Trust: 0.8

sources: CNVD: CNVD-2025-12019 // JVNDB: JVNDB-2025-004769 // NVD: CVE-2025-3666

SOURCES

db:CNVDid:CNVD-2025-12019
db:JVNDBid:JVNDB-2025-004769
db:NVDid:CVE-2025-3666

LAST UPDATE DATE

2025-06-12T02:13:23.037000+00:00


SOURCES UPDATE DATE

db:CNVDid:CNVD-2025-12019date:2025-06-10T00:00:00
db:JVNDBid:JVNDB-2025-004769date:2025-05-13T07:03:00
db:NVDid:CVE-2025-3666date:2025-05-12T19:49:52.043

SOURCES RELEASE DATE

db:CNVDid:CNVD-2025-12019date:2025-06-10T00:00:00
db:JVNDBid:JVNDB-2025-004769date:2025-05-13T00:00:00
db:NVDid:CVE-2025-3666date:2025-04-16T04:15:23.040