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ID

VAR-202507-2397


CVE

CVE-2025-7805


TITLE

Shenzhen Tenda Technology Co.,Ltd.  of  fh451  Buffer error vulnerability in firmware

Trust: 0.8

sources: JVNDB: JVNDB-2025-009718

DESCRIPTION

A vulnerability classified as critical has been found in Tenda FH451 1.0.0.9. This affects the function fromPptpUserSetting of the file /goform/PPTPUserSetting. The manipulation of the argument delno leads to stack-based 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 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. Tenda FH451 is a single-frequency 2.4GHz SOHO wireless router launched by China's Tenda Company. It has a maximum transmission rate of 450Mbps and belongs to the wall-penetrating king series of products. The vulnerability is caused by the failure to correctly verify the length of the input data in the parameter delno in the file /goform/PPTPUserSetting. Attackers can use this vulnerability to execute arbitrary code on the system or cause a denial of service

Trust: 2.16

sources: NVD: CVE-2025-7805 // JVNDB: JVNDB-2025-009718 // CNVD: CNVD-2025-16816

IOT TAXONOMY

category:['Network device']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2025-16816

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-2025-16816 // JVNDB: JVNDB-2025-009718 // NVD: CVE-2025-7805

CVSS

SEVERITY

CVSSV2

CVSSV3

cna@vuldb.com: CVE-2025-7805
value: HIGH

Trust: 1.0

OTHER: JVNDB-2025-009718
value: HIGH

Trust: 0.8

CNVD: CNVD-2025-16816
value: HIGH

Trust: 0.6

cna@vuldb.com: CVE-2025-7805
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-2025-009718
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-2025-16816
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-2025-7805
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-2025-009718
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-2025-16816 // JVNDB: JVNDB-2025-009718 // NVD: CVE-2025-7805

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-2025-009718 // NVD: CVE-2025-7805

EXTERNAL IDS

db:NVDid:CVE-2025-7805

Trust: 3.2

db:VULDBid:316881

Trust: 1.8

db:JVNDBid:JVNDB-2025-009718

Trust: 0.8

db:CNVDid:CNVD-2025-16816

Trust: 0.6

sources: CNVD: CNVD-2025-16816 // JVNDB: JVNDB-2025-009718 // NVD: CVE-2025-7805

REFERENCES

url:https://github.com/panda666-888/vuls/blob/main/tenda/fh451/frompptpusersetting.md

Trust: 2.4

url:https://github.com/panda666-888/vuls/blob/main/tenda/fh451/frompptpusersetting.md#poc

Trust: 1.8

url:https://vuldb.com/?id.316881

Trust: 1.8

url:https://vuldb.com/?submit.616347

Trust: 1.8

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

Trust: 1.8

url:https://vuldb.com/?ctiid.316881

Trust: 1.0

url:https://nvd.nist.gov/vuln/detail/cve-2025-7805

Trust: 0.8

sources: CNVD: CNVD-2025-16816 // JVNDB: JVNDB-2025-009718 // NVD: CVE-2025-7805

SOURCES

db:CNVDid:CNVD-2025-16816
db:JVNDBid:JVNDB-2025-009718
db:NVDid:CVE-2025-7805

LAST UPDATE DATE

2025-07-28T23:35:16.913000+00:00


SOURCES UPDATE DATE

db:CNVDid:CNVD-2025-16816date:2025-07-25T00:00:00
db:JVNDBid:JVNDB-2025-009718date:2025-07-24T02:41:00
db:NVDid:CVE-2025-7805date:2025-07-23T16:40:01.760

SOURCES RELEASE DATE

db:CNVDid:CNVD-2025-16816date:2025-07-25T00:00:00
db:JVNDBid:JVNDB-2025-009718date:2025-07-24T00:00:00
db:NVDid:CVE-2025-7805date:2025-07-18T20:15:25.430