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ID

VAR-202507-0373


CVE

CVE-2025-7420


TITLE

Shenzhen Tenda Technology Co.,Ltd.  of  o3  Buffer error vulnerability in firmware

Trust: 0.8

sources: JVNDB: JVNDB-2025-009358

DESCRIPTION

A vulnerability was found in Tenda O3V2 1.0.0.12(3880). It has been declared as critical. This vulnerability affects the function formWifiBasicSet of the file /goform/setWrlBasicInfo of the component httpd. The manipulation of the argument extChannel leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. of o3 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. This vulnerability stems from the failure of the extChannel parameter in the file /goform/setWrlBasicInfo to properly validate the length of input data. An attacker could exploit this vulnerability to execute arbitrary code or cause a denial of service

Trust: 2.16

sources: NVD: CVE-2025-7420 // JVNDB: JVNDB-2025-009358 // CNVD: CNVD-2025-17017

IOT TAXONOMY

category:['Network device']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2025-17017

AFFECTED PRODUCTS

vendor:tendamodel:o3scope:eqversion:1.0.0.12\(3880\)

Trust: 1.0

vendor:tendamodel:o3scope:eqversion:o3 firmware 1.0.0.12(3880)

Trust: 0.8

vendor:tendamodel:o3scope: - version: -

Trust: 0.8

vendor:tendamodel:o3scope:eqversion: -

Trust: 0.8

vendor:tendamodel:o3v2scope:eqversion:1.0.0.12(3880)

Trust: 0.6

sources: CNVD: CNVD-2025-17017 // JVNDB: JVNDB-2025-009358 // NVD: CVE-2025-7420

CVSS

SEVERITY

CVSSV2

CVSSV3

cna@vuldb.com: CVE-2025-7420
value: HIGH

Trust: 1.0

OTHER: JVNDB-2025-009358
value: HIGH

Trust: 0.8

CNVD: CNVD-2025-17017
value: HIGH

Trust: 0.6

cna@vuldb.com: CVE-2025-7420
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-2025-009358
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-2025-17017
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-2025-7420
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-2025-009358
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-2025-17017 // JVNDB: JVNDB-2025-009358 // NVD: CVE-2025-7420

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-2025-009358 // NVD: CVE-2025-7420

EXTERNAL IDS

db:NVDid:CVE-2025-7420

Trust: 3.2

db:VULDBid:315880

Trust: 1.8

db:JVNDBid:JVNDB-2025-009358

Trust: 0.8

db:CNVDid:CNVD-2025-17017

Trust: 0.6

sources: CNVD: CNVD-2025-17017 // JVNDB: JVNDB-2025-009358 // NVD: CVE-2025-7420

REFERENCES

url:https://github.com/wudipjq/my_vuln/blob/main/tenda3/vuln_53/53.md

Trust: 1.8

url:https://github.com/wudipjq/my_vuln/blob/main/tenda3/vuln_53/53.md#poc

Trust: 1.8

url:https://vuldb.com/?id.315880

Trust: 1.8

url:https://vuldb.com/?submit.608866

Trust: 1.8

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

Trust: 1.8

url:https://vuldb.com/?ctiid.315880

Trust: 1.0

url:https://nvd.nist.gov/vuln/detail/cve-2025-7420

Trust: 0.8

url:https://access.redhat.com/security/cve/cve-2025-7420

Trust: 0.6

sources: CNVD: CNVD-2025-17017 // JVNDB: JVNDB-2025-009358 // NVD: CVE-2025-7420

SOURCES

db:CNVDid:CNVD-2025-17017
db:JVNDBid:JVNDB-2025-009358
db:NVDid:CVE-2025-7420

LAST UPDATE DATE

2025-07-30T23:04:29.567000+00:00


SOURCES UPDATE DATE

db:CNVDid:CNVD-2025-17017date:2025-07-29T00:00:00
db:JVNDBid:JVNDB-2025-009358date:2025-07-18T08:56:00
db:NVDid:CVE-2025-7420date:2025-07-16T16:40:47.120

SOURCES RELEASE DATE

db:CNVDid:CNVD-2025-17017date:2025-07-29T00:00:00
db:JVNDBid:JVNDB-2025-009358date:2025-07-18T00:00:00
db:NVDid:CVE-2025-7420date:2025-07-11T00:15:29.187