Details of VAR-202209-1795

ID

VAR-202209-1795

CVE

CVE-2022-40867

TITLE

Shenzhen Tenda Technology Co.,Ltd. of W20E Out-of-bounds write vulnerability in firmware

Trust: 0.8

sources: JVNDB: JVNDB-2022-017869

DESCRIPTION

Tenda W20E router V15.11.0.6 (US_W20EV4.0br_V15.11.0.6(1068_1546_841)_CN_TDC) contains a stack overflow vulnerability in the function formIPMacBindDel with the request /goform/delIpMacBind/. Shenzhen Tenda Technology Co.,Ltd. of W20E An out-of-bounds write vulnerability exists in firmware.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state. The vulnerability is due to the fact that the formIPMacBindDel method does not check the size of the input data when the request /goform/delIpMacBind/ is included. Attackers can exploit the vulnerability to cause remote code execution or rejection Serve

Trust: 2.16

sources: NVD: CVE-2022-40867 // JVNDB: JVNDB-2022-017869 // CNVD: CNVD-2022-88204

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2022-88204

AFFECTED PRODUCTS

vendor:	tenda	model:	w20e	scope:	eq	version:	15.11.0.6	Trust: 1.0
vendor:	tenda	model:	w20e	scope:	eq	version:	w20e firmware 15.11.0.6	Trust: 0.8
vendor:	tenda	model:	w20e	scope:	eq	version:	-	Trust: 0.8
vendor:	tenda	model:	w20e	scope:	-	version:	-	Trust: 0.8
vendor:	tenda	model:	w20e	scope:	eq	version:	v15.11.0.6	Trust: 0.6

sources: CNVD: CNVD-2022-88204 // JVNDB: JVNDB-2022-017869 // NVD: CVE-2022-40867

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2022-40867
value:	CRITICAL
Trust: 1.0
134c704f-9b21-4f2e-91b3-4a467353bcc0:	CVE-2022-40867
value:	CRITICAL
Trust: 1.0
NVD:	CVE-2022-40867
value:	CRITICAL
Trust: 0.8
CNVD:	CNVD-2022-88204
value:	HIGH
Trust: 0.6
CNNVD:	CNNVD-202209-2370
value:	CRITICAL
Trust: 0.6

CNVD:	CNVD-2022-88204
severity:	HIGH
baseScore:	7.5
vectorString:	AV:N/AC:L/AU:N/C:P/I:P/A:P
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	PARTIAL
integrityImpact:	PARTIAL
availabilityImpact:	PARTIAL
exploitabilityScore:	10.0
impactScore:	6.4
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6

nvd@nist.gov:	CVE-2022-40867
baseSeverity:	CRITICAL
baseScore:	9.8
vectorString:	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	3.9
impactScore:	5.9
version:	3.1
Trust: 2.0
NVD:	CVE-2022-40867
baseSeverity:	CRITICAL
baseScore:	9.8
vectorString:	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8

sources: CNVD: CNVD-2022-88204 // JVNDB: JVNDB-2022-017869 // CNNVD: CNNVD-202209-2370 // NVD: CVE-2022-40867 // NVD: CVE-2022-40867

PROBLEMTYPE DATA

problemtype:	CWE-787	Trust: 1.0
problemtype:	Out-of-bounds writing (CWE-787) [NVD evaluation ]	Trust: 0.8

sources: JVNDB: JVNDB-2022-017869 // NVD: CVE-2022-40867

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202209-2370

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202209-2370

PATCH

title:	Patch for Tenda W20E formIPMacBindDel stack overflow vulnerability	url:	https://www.cnvd.org.cn/patchInfo/show/372626	Trust: 0.6
title:	Tenda W20E Buffer error vulnerability fix	url:	http://123.124.177.30/web/xxk/bdxqById.tag?id=209422	Trust: 0.6

sources: CNVD: CNVD-2022-88204 // CNNVD: CNNVD-202209-2370

EXTERNAL IDS

db:	NVD	id:	CVE-2022-40867	Trust: 3.8
db:	JVNDB	id:	JVNDB-2022-017869	Trust: 0.8
db:	CNVD	id:	CNVD-2022-88204	Trust: 0.6
db:	CNNVD	id:	CNNVD-202209-2370	Trust: 0.6

sources: CNVD: CNVD-2022-88204 // JVNDB: JVNDB-2022-017869 // CNNVD: CNNVD-202209-2370 // NVD: CVE-2022-40867

REFERENCES

url:	https://github.com/cpseek/router-vuls/blob/main/tenda/w20e/formipmacbinddel.md	Trust: 3.0
url:	https://nvd.nist.gov/vuln/detail/cve-2022-40867	Trust: 0.8
url:	https://cxsecurity.com/cveshow/cve-2022-40867/	Trust: 0.6

sources: CNVD: CNVD-2022-88204 // JVNDB: JVNDB-2022-017869 // CNNVD: CNNVD-202209-2370 // NVD: CVE-2022-40867

SOURCES

db:	CNVD	id:	CNVD-2022-88204
db:	JVNDB	id:	JVNDB-2022-017869
db:	CNNVD	id:	CNNVD-202209-2370
db:	NVD	id:	CVE-2022-40867

LAST UPDATE DATE

2025-05-23T23:14:24.701000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2022-88204	date:	2022-12-18T00:00:00
db:	JVNDB	id:	JVNDB-2022-017869	date:	2023-10-17T08:02:00
db:	CNNVD	id:	CNNVD-202209-2370	date:	2022-09-29T00:00:00
db:	NVD	id:	CVE-2022-40867	date:	2025-05-22T20:15:26.493

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2022-88204	date:	2022-12-17T00:00:00
db:	JVNDB	id:	JVNDB-2022-017869	date:	2023-10-17T00:00:00
db:	CNNVD	id:	CNNVD-202209-2370	date:	2022-09-23T00:00:00
db:	NVD	id:	CVE-2022-40867	date:	2022-09-23T15:15:14.653