Sign-up

ID

VAR-202504-3167


CVE

CVE-2025-3820


TITLE

Shenzhen Tenda Technology Co.,Ltd.  of  W12  firmware and  i24  Buffer error vulnerability in firmware

Trust: 0.8

sources: JVNDB: JVNDB-2025-010305

DESCRIPTION

A vulnerability was found in Tenda W12 and i24 3.0.0.4(2887)/3.0.0.5(3644) and classified as critical. Affected by this issue is the function cgiSysUplinkCheckSet of the file /bin/httpd. The manipulation of the argument hostIp1/hostIp2 leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. Shenzhen Tenda Technology Co.,Ltd. of W12 firmware and i24 The firmware contains a buffer error vulnerability and a stack-based buffer overflow vulnerability.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state. The vulnerability is caused by improper handling of cgiSysUplinkCheckSet. Attackers can exploit this vulnerability to execute arbitrary code

Trust: 2.16

sources: NVD: CVE-2025-3820 // JVNDB: JVNDB-2025-010305 // CNVD: CNVD-2025-09682

IOT TAXONOMY

category:['Network device']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2025-09682

AFFECTED PRODUCTS

vendor:tendamodel:w12scope:eqversion:3.0.0.4\(2887\)

Trust: 1.0

vendor:tendamodel:i24scope:eqversion:3.0.0.5\(3644\)

Trust: 1.0

vendor:tendamodel:i24scope:eqversion:3.0.0.4\(2887\)

Trust: 1.0

vendor:tendamodel:w12scope:eqversion:3.0.0.5\(3644\)

Trust: 1.0

vendor:tendamodel:w12scope: - version: -

Trust: 0.8

vendor:tendamodel:i24scope: - version: -

Trust: 0.8

vendor:tendamodel:i24scope:eqversion:3.0.0.5(3644)

Trust: 0.6

vendor:tendamodel:w12scope:eqversion:3.0.0.4(2887)

Trust: 0.6

sources: CNVD: CNVD-2025-09682 // JVNDB: JVNDB-2025-010305 // NVD: CVE-2025-3820

CVSS

SEVERITY

CVSSV2

CVSSV3

cna@vuldb.com: CVE-2025-3820
value: HIGH

Trust: 1.0

OTHER: JVNDB-2025-010305
value: HIGH

Trust: 0.8

CNVD: CNVD-2025-09682
value: HIGH

Trust: 0.6

cna@vuldb.com: CVE-2025-3820
severity: HIGH
baseScore: 9.0
vectorString: AV:N/AC:L/AU:S/C:C/I:C/A:C
accessVector: NETWORK
accessComplexity: LOW
authentication: SINGLE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: 8.0
impactScore: 10.0
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.0

OTHER: JVNDB-2025-010305
severity: HIGH
baseScore: 9.0
vectorString: AV:N/AC:L/AU:S/C:C/I:C/A:C
accessVector: NETWORK
accessComplexity: LOW
authentication: SINGLE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: NONE
impactScore: NONE
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.8

CNVD: CNVD-2025-09682
severity: HIGH
baseScore: 9.0
vectorString: AV:N/AC:L/AU:S/C:C/I:C/A:C
accessVector: NETWORK
accessComplexity: LOW
authentication: SINGLE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: 8.0
impactScore: 10.0
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.6

cna@vuldb.com: CVE-2025-3820
baseSeverity: HIGH
baseScore: 8.8
vectorString: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: LOW
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 2.8
impactScore: 5.9
version: 3.1

Trust: 1.0

OTHER: JVNDB-2025-010305
baseSeverity: HIGH
baseScore: 8.8
vectorString: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: LOW
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

sources: CNVD: CNVD-2025-09682 // JVNDB: JVNDB-2025-010305 // NVD: CVE-2025-3820

PROBLEMTYPE DATA

problemtype:CWE-119

Trust: 1.0

problemtype:CWE-121

Trust: 1.0

problemtype:Buffer error (CWE-119) [ others ]

Trust: 0.8

problemtype: Stack-based buffer overflow (CWE-121) [ others ]

Trust: 0.8

sources: JVNDB: JVNDB-2025-010305 // NVD: CVE-2025-3820

EXTERNAL IDS

db:NVDid:CVE-2025-3820

Trust: 3.2

db:VULDBid:305726

Trust: 1.8

db:JVNDBid:JVNDB-2025-010305

Trust: 0.8

db:CNVDid:CNVD-2025-09682

Trust: 0.6

sources: CNVD: CNVD-2025-09682 // JVNDB: JVNDB-2025-010305 // NVD: CVE-2025-3820

REFERENCES

url:https://github.com/02tn/vul/issues/4

Trust: 1.8

url:https://vuldb.com/?id.305726

Trust: 1.8

url:https://vuldb.com/?submit.555728

Trust: 1.8

url:https://www.tenda.com.cn/

Trust: 1.8

url:https://nvd.nist.gov/vuln/detail/cve-2025-3820

Trust: 1.4

url:https://vuldb.com/?ctiid.305726

Trust: 1.0

sources: CNVD: CNVD-2025-09682 // JVNDB: JVNDB-2025-010305 // NVD: CVE-2025-3820

SOURCES

db:CNVDid:CNVD-2025-09682
db:JVNDBid:JVNDB-2025-010305
db:NVDid:CVE-2025-3820

LAST UPDATE DATE

2025-08-02T23:09:37.510000+00:00


SOURCES UPDATE DATE

db:CNVDid:CNVD-2025-09682date:2025-05-14T00:00:00
db:JVNDBid:JVNDB-2025-010305date:2025-07-31T03:19:00
db:NVDid:CVE-2025-3820date:2025-07-30T18:57:54.207

SOURCES RELEASE DATE

db:CNVDid:CNVD-2025-09682date:2025-05-13T00:00:00
db:JVNDBid:JVNDB-2025-010305date:2025-07-31T00:00:00
db:NVDid:CVE-2025-3820date:2025-04-19T21:15:45.660