Details of VAR-202509-1119

ID

VAR-202509-1119

CVE

CVE-2025-57071

TITLE

Shenzhen Tenda Technology Co.,Ltd. of G3 Stack-based buffer overflow vulnerability in firmware

Trust: 0.8

sources: JVNDB: JVNDB-2025-014167

DESCRIPTION

Tenda G3 v3.0br_V15.11.0.17 was discovered to contain a stack overflow in the vpnUsers parameter in the formAddVpnUsers function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted request. Shenzhen Tenda Technology Co.,Ltd. of G3 A stack-based buffer overflow vulnerability exists in the firmware.Service operation interruption (DoS) It may be in a state. The Tenda G3 is a QoS VPN router from the Chinese company Tenda. This vulnerability stems from the failure to properly validate the length of the input data in the vpnUsers parameter in the formAddVpnUsers function

Trust: 2.16

sources: NVD: CVE-2025-57071 // JVNDB: JVNDB-2025-014167 // CNVD: CNVD-2025-21163

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2025-21163

AFFECTED PRODUCTS

vendor:	tenda	model:	g3	scope:	lte	version:	15.11.0.17\(9502\)	Trust: 1.0
vendor:	tenda	model:	g3	scope:	-	version:	-	Trust: 0.8
vendor:	tenda	model:	g3	scope:	lte	version:	g3 firmware 15.11.0.17(9502) and earlier	Trust: 0.8
vendor:	tenda	model:	g3	scope:	eq	version:	-	Trust: 0.8
vendor:	tenda	model:	g3 v3.0br v15.11.0.17	scope:	-	version:	-	Trust: 0.6

sources: CNVD: CNVD-2025-21163 // JVNDB: JVNDB-2025-014167 // NVD: CVE-2025-57071

CVSS

SEVERITY

CVSSV2

CVSSV3

134c704f-9b21-4f2e-91b3-4a467353bcc0:	CVE-2025-57071
value:	HIGH
Trust: 1.0
OTHER:	JVNDB-2025-014167
value:	HIGH
Trust: 0.8
CNVD:	CNVD-2025-21163
value:	HIGH
Trust: 0.6

CNVD:	CNVD-2025-21163
severity:	HIGH
baseScore:	7.8
vectorString:	AV:N/AC:L/AU:N/C:N/I:N/A:C
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	COMPLETE
exploitabilityScore:	10.0
impactScore:	6.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6

134c704f-9b21-4f2e-91b3-4a467353bcc0:	CVE-2025-57071
baseSeverity:	HIGH
baseScore:	7.5
vectorString:	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	HIGH
exploitabilityScore:	3.9
impactScore:	3.6
version:	3.1
Trust: 1.0
OTHER:	JVNDB-2025-014167
baseSeverity:	HIGH
baseScore:	7.5
vectorString:	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	HIGH
exploitabilityScore:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8

sources: CNVD: CNVD-2025-21163 // JVNDB: JVNDB-2025-014167 // NVD: CVE-2025-57071

PROBLEMTYPE DATA

problemtype:	CWE-121	Trust: 1.0
problemtype:	Stack-based buffer overflow (CWE-121) [ others ]	Trust: 0.8

sources: JVNDB: JVNDB-2025-014167 // NVD: CVE-2025-57071

EXTERNAL IDS

db:	NVD	id:	CVE-2025-57071	Trust: 3.2
db:	JVNDB	id:	JVNDB-2025-014167	Trust: 0.8
db:	CNVD	id:	CNVD-2025-21163	Trust: 0.6

sources: CNVD: CNVD-2025-21163 // JVNDB: JVNDB-2025-014167 // NVD: CVE-2025-57071

REFERENCES

url:	https://github.com/vulndetailrecord/vulfordevice/blob/main/tenda/g3/formaddvpnusers.md	Trust: 1.8
url:	https://nvd.nist.gov/vuln/detail/cve-2025-57071	Trust: 1.4

sources: CNVD: CNVD-2025-21163 // JVNDB: JVNDB-2025-014167 // NVD: CVE-2025-57071

SOURCES

db:	CNVD	id:	CNVD-2025-21163
db:	JVNDB	id:	JVNDB-2025-014167
db:	NVD	id:	CVE-2025-57071

LAST UPDATE DATE

2025-09-23T23:31:39.784000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2025-21163	date:	2025-09-12T00:00:00
db:	JVNDB	id:	JVNDB-2025-014167	date:	2025-09-22T06:57:00
db:	NVD	id:	CVE-2025-57071	date:	2025-09-18T18:41:40.450

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2025-21163	date:	2025-09-12T00:00:00
db:	JVNDB	id:	JVNDB-2025-014167	date:	2025-09-22T00:00:00
db:	NVD	id:	CVE-2025-57071	date:	2025-09-09T17:16:09.797