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ID

VAR-202507-2356


CVE

CVE-2025-7854


TITLE

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

Trust: 0.8

sources: JVNDB: JVNDB-2025-009734

DESCRIPTION

A vulnerability classified as critical has been found in Tenda FH451 1.0.0.9. Affected is the function fromVirtualSer of the file /goform/VirtualSer. The manipulation of the argument page leads to stack-based buffer overflow. It is possible to launch 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. The vulnerability is caused by the fromVirtualSer function in the file /goform/VirtualSer failing to correctly verify the length of the input data for the parameter page. 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-2025-7854 // JVNDB: JVNDB-2025-009734 // CNVD: CNVD-2025-16849

IOT TAXONOMY

category:['Network device']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2025-16849

AFFECTED PRODUCTS

vendor:tendamodel:fh451scope:eqversion:1.0.0.9

Trust: 1.6

vendor:tendamodel:fh451scope:eqversion:fh451 firmware 1.0.0.9

Trust: 0.8

vendor:tendamodel:fh451scope:eqversion: -

Trust: 0.8

vendor:tendamodel:fh451scope: - version: -

Trust: 0.8

sources: CNVD: CNVD-2025-16849 // JVNDB: JVNDB-2025-009734 // NVD: CVE-2025-7854

CVSS

SEVERITY

CVSSV2

CVSSV3

cna@vuldb.com: CVE-2025-7854
value: HIGH

Trust: 1.0

OTHER: JVNDB-2025-009734
value: HIGH

Trust: 0.8

CNVD: CNVD-2025-16849
value: HIGH

Trust: 0.6

cna@vuldb.com: CVE-2025-7854
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-2025-009734
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-2025-16849
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-2025-7854
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-2025-009734
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-2025-16849 // JVNDB: JVNDB-2025-009734 // NVD: CVE-2025-7854

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-2025-009734 // NVD: CVE-2025-7854

EXTERNAL IDS

db:NVDid:CVE-2025-7854

Trust: 3.2

db:VULDBid:316944

Trust: 1.8

db:JVNDBid:JVNDB-2025-009734

Trust: 0.8

db:CNVDid:CNVD-2025-16849

Trust: 0.6

sources: CNVD: CNVD-2025-16849 // JVNDB: JVNDB-2025-009734 // NVD: CVE-2025-7854

REFERENCES

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

Trust: 1.8

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

Trust: 1.8

url:https://vuldb.com/?id.316944

Trust: 1.8

url:https://vuldb.com/?submit.616366

Trust: 1.8

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

Trust: 1.8

url:https://nvd.nist.gov/vuln/detail/cve-2025-7854

Trust: 1.4

url:https://vuldb.com/?ctiid.316944

Trust: 1.0

sources: CNVD: CNVD-2025-16849 // JVNDB: JVNDB-2025-009734 // NVD: CVE-2025-7854

SOURCES

db:CNVDid:CNVD-2025-16849
db:JVNDBid:JVNDB-2025-009734
db:NVDid:CVE-2025-7854

LAST UPDATE DATE

2025-07-28T23:35:36.810000+00:00


SOURCES UPDATE DATE

db:CNVDid:CNVD-2025-16849date:2025-07-25T00:00:00
db:JVNDBid:JVNDB-2025-009734date:2025-07-24T06:30:00
db:NVDid:CVE-2025-7854date:2025-07-23T16:19:08.407

SOURCES RELEASE DATE

db:CNVDid:CNVD-2025-16849date:2025-07-25T00:00:00
db:JVNDBid:JVNDB-2025-009734date:2025-07-24T00:00:00
db:NVDid:CVE-2025-7854date:2025-07-19T21:15:24.070