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ID

VAR-202209-1675


CVE

CVE-2022-40866


TITLE

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

Trust: 0.8

sources: JVNDB: JVNDB-2022-017870

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 formSetDebugCfg with request /goform/setDebugCfg/. 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 caused by the fact that the formSetDebugCfg method does not check the size of the input data when it has a request /goform/setDebugCfg/. Attackers can use the vulnerability to cause remote code execution or denial of service

Trust: 2.16

sources: NVD: CVE-2022-40866 // JVNDB: JVNDB-2022-017870 // CNVD: CNVD-2022-88205

IOT TAXONOMY

category:['Network device']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2022-88205

AFFECTED PRODUCTS

vendor:tendamodel:w20escope:eqversion:15.11.0.6

Trust: 1.0

vendor:tendamodel:w20escope:eqversion:w20e firmware 15.11.0.6

Trust: 0.8

vendor:tendamodel:w20escope:eqversion: -

Trust: 0.8

vendor:tendamodel:w20escope: - version: -

Trust: 0.8

vendor:tendamodel:w20escope:eqversion:v15.11.0.6

Trust: 0.6

sources: CNVD: CNVD-2022-88205 // JVNDB: JVNDB-2022-017870 // NVD: CVE-2022-40866

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2022-40866
value: CRITICAL

Trust: 1.0

134c704f-9b21-4f2e-91b3-4a467353bcc0: CVE-2022-40866
value: CRITICAL

Trust: 1.0

NVD: CVE-2022-40866
value: CRITICAL

Trust: 0.8

CNVD: CNVD-2022-88205
value: HIGH

Trust: 0.6

CNNVD: CNNVD-202209-2372
value: CRITICAL

Trust: 0.6

CNVD: CNVD-2022-88205
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-2022-40866
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-2022-40866
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-2022-88205 // JVNDB: JVNDB-2022-017870 // CNNVD: CNNVD-202209-2372 // NVD: CVE-2022-40866 // NVD: CVE-2022-40866

PROBLEMTYPE DATA

problemtype:CWE-787

Trust: 1.0

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

Trust: 0.8

sources: JVNDB: JVNDB-2022-017870 // NVD: CVE-2022-40866

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202209-2372

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202209-2372

PATCH

title:Patch for Tenda W20E formSetDebugCfg stack overflow vulnerabilityurl:https://www.cnvd.org.cn/patchInfo/show/372636

Trust: 0.6

title:Tenda W20E Buffer error vulnerability fixurl:http://123.124.177.30/web/xxk/bdxqById.tag?id=209423

Trust: 0.6

sources: CNVD: CNVD-2022-88205 // CNNVD: CNNVD-202209-2372

EXTERNAL IDS

db:NVDid:CVE-2022-40866

Trust: 3.8

db:JVNDBid:JVNDB-2022-017870

Trust: 0.8

db:CNVDid:CNVD-2022-88205

Trust: 0.6

db:CNNVDid:CNNVD-202209-2372

Trust: 0.6

sources: CNVD: CNVD-2022-88205 // JVNDB: JVNDB-2022-017870 // CNNVD: CNNVD-202209-2372 // NVD: CVE-2022-40866

REFERENCES

url:https://github.com/cpseek/router-vuls/blob/main/tenda/w20e/setdebugcfg.md

Trust: 3.0

url:https://nvd.nist.gov/vuln/detail/cve-2022-40866

Trust: 0.8

url:https://cxsecurity.com/cveshow/cve-2022-40866/

Trust: 0.6

sources: CNVD: CNVD-2022-88205 // JVNDB: JVNDB-2022-017870 // CNNVD: CNNVD-202209-2372 // NVD: CVE-2022-40866

SOURCES

db:CNVDid:CNVD-2022-88205
db:JVNDBid:JVNDB-2022-017870
db:CNNVDid:CNNVD-202209-2372
db:NVDid:CVE-2022-40866

LAST UPDATE DATE

2025-05-23T23:29:56.549000+00:00


SOURCES UPDATE DATE

db:CNVDid:CNVD-2022-88205date:2022-12-18T00:00:00
db:JVNDBid:JVNDB-2022-017870date:2023-10-17T08:02:00
db:CNNVDid:CNNVD-202209-2372date:2022-09-29T00:00:00
db:NVDid:CVE-2022-40866date:2025-05-22T20:15:26.293

SOURCES RELEASE DATE

db:CNVDid:CNVD-2022-88205date:2022-12-17T00:00:00
db:JVNDBid:JVNDB-2022-017870date:2023-10-17T00:00:00
db:CNNVDid:CNNVD-202209-2372date:2022-09-23T00:00:00
db:NVDid:CVE-2022-40866date:2022-09-23T15:15:14.593