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ID

VAR-202507-2422


CVE

CVE-2025-7747


TITLE

Shenzhen Tenda Technology Co.,Ltd.  of  fh451  Classic buffer overflow vulnerability in firmware

Trust: 0.8

sources: JVNDB: JVNDB-2025-009456

DESCRIPTION

A vulnerability classified as critical has been found in Tenda FH451 1.0.0.9. This affects the function fromWizardHandle of the file /goform/WizardHandle of the component POST Request Handler. The manipulation of the argument PPW leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. Shenzhen Tenda Technology Co.,Ltd. of fh451 Firmware has a classic 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 the parameter PPW in the file /goform/WizardHandle failing to correctly verify the length of the input data. Remote attackers can exploit this vulnerability to execute arbitrary code on the system or cause a denial of service attack

Trust: 2.16

sources: NVD: CVE-2025-7747 // JVNDB: JVNDB-2025-009456 // CNVD: CNVD-2025-16850

IOT TAXONOMY

category:['Network device']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2025-16850

AFFECTED PRODUCTS

vendor:tendamodel:fh451scope:eqversion:1.0.0.9

Trust: 1.6

vendor:tendamodel:fh451scope: - version: -

Trust: 0.8

vendor:tendamodel:fh451scope:eqversion: -

Trust: 0.8

vendor:tendamodel:fh451scope:eqversion:fh451 firmware 1.0.0.9

Trust: 0.8

sources: CNVD: CNVD-2025-16850 // JVNDB: JVNDB-2025-009456 // NVD: CVE-2025-7747

CVSS

SEVERITY

CVSSV2

CVSSV3

cna@vuldb.com: CVE-2025-7747
value: HIGH

Trust: 1.0

OTHER: JVNDB-2025-009456
value: HIGH

Trust: 0.8

CNVD: CNVD-2025-16850
value: HIGH

Trust: 0.6

cna@vuldb.com: CVE-2025-7747
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-2025-009456
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-2025-16850
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-2025-7747
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-2025-009456
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-2025-16850 // JVNDB: JVNDB-2025-009456 // NVD: CVE-2025-7747

PROBLEMTYPE DATA

problemtype:CWE-119

Trust: 1.0

problemtype:CWE-120

Trust: 1.0

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

Trust: 0.8

problemtype: Classic buffer overflow (CWE-120) [NVD evaluation ]

Trust: 0.8

problemtype: Classic buffer overflow (CWE-120) [ others ]

Trust: 0.8

sources: JVNDB: JVNDB-2025-009456 // NVD: CVE-2025-7747

EXTERNAL IDS

db:NVDid:CVE-2025-7747

Trust: 3.2

db:VULDBid:316737

Trust: 1.8

db:JVNDBid:JVNDB-2025-009456

Trust: 0.8

db:CNVDid:CNVD-2025-16850

Trust: 0.6

sources: CNVD: CNVD-2025-16850 // JVNDB: JVNDB-2025-009456 // NVD: CVE-2025-7747

REFERENCES

url:https://github.com/zezhifu1/cve_report/blob/main/fh451/fromwizardhandle.md

Trust: 1.8

url:https://github.com/zezhifu1/cve_report/blob/main/fh451/fromwizardhandle.md#payload

Trust: 1.8

url:https://vuldb.com/?id.316737

Trust: 1.8

url:https://vuldb.com/?submit.615487

Trust: 1.8

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

Trust: 1.8

url:https://nvd.nist.gov/vuln/detail/cve-2025-7747

Trust: 1.4

url:https://vuldb.com/?ctiid.316737

Trust: 1.0

sources: CNVD: CNVD-2025-16850 // JVNDB: JVNDB-2025-009456 // NVD: CVE-2025-7747

SOURCES

db:CNVDid:CNVD-2025-16850
db:JVNDBid:JVNDB-2025-009456
db:NVDid:CVE-2025-7747

LAST UPDATE DATE

2025-07-28T23:34:24.689000+00:00


SOURCES UPDATE DATE

db:CNVDid:CNVD-2025-16850date:2025-07-25T00:00:00
db:JVNDBid:JVNDB-2025-009456date:2025-07-22T05:43:00
db:NVDid:CVE-2025-7747date:2025-07-18T17:11:10.103

SOURCES RELEASE DATE

db:CNVDid:CNVD-2025-16850date:2025-07-17T00:00:00
db:JVNDBid:JVNDB-2025-009456date:2025-07-22T00:00:00
db:NVDid:CVE-2025-7747date:2025-07-17T18:15:28.173