Sign-up

ID

VAR-202309-0795


CVE

CVE-2021-40546


TITLE

Shenzhen Tenda Technology Co.,Ltd.  of  AC6  Improper Shutdown and Release of Resources in Firmware Vulnerability

Trust: 0.8

sources: JVNDB: JVNDB-2021-020673

DESCRIPTION

Tenda AC6 US_AC6V4.0RTL_V02.03.01.26_cn.bin allows attackers (who have the administrator password) to cause a denial of service (device crash) via a long string in the wifiPwd_5G parameter to /goform/setWifi. Shenzhen Tenda Technology Co.,Ltd. of AC6 A vulnerability exists in firmware related to improper shutdown and release of resources.Service operation interruption (DoS) It may be in a state. Tenda AC6 has a denial of service vulnerability. This vulnerability results from incorrect processing of input error messages

Trust: 2.16

sources: NVD: CVE-2021-40546 // JVNDB: JVNDB-2021-020673 // CNVD: CNVD-2023-70090

IOT TAXONOMY

category:['Network device']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2023-70090

AFFECTED PRODUCTS

vendor:tendamodel:ac6scope:eqversion:02.03.01.26

Trust: 1.6

vendor:tendamodel:ac6scope: - version: -

Trust: 0.8

vendor:tendamodel:ac6scope:eqversion:ac6 firmware 02.03.01.26

Trust: 0.8

vendor:tendamodel:ac6scope:eqversion: -

Trust: 0.8

sources: CNVD: CNVD-2023-70090 // JVNDB: JVNDB-2021-020673 // NVD: CVE-2021-40546

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2021-40546
value: MEDIUM

Trust: 1.0

NVD: CVE-2021-40546
value: MEDIUM

Trust: 0.8

CNVD: CNVD-2023-70090
value: MEDIUM

Trust: 0.6

CNVD: CNVD-2023-70090
severity: MEDIUM
baseScore: 6.1
vectorString: AV:N/AC:L/AU:M/C:N/I:N/A:C
accessVector: NETWORK
accessComplexity: LOW
authentication: MULTIPLE
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: COMPLETE
exploitabilityScore: 6.4
impactScore: 6.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.6

nvd@nist.gov: CVE-2021-40546
baseSeverity: MEDIUM
baseScore: 4.9
vectorString: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: HIGH
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: HIGH
exploitabilityScore: 1.2
impactScore: 3.6
version: 3.1

Trust: 1.0

NVD: CVE-2021-40546
baseSeverity: MEDIUM
baseScore: 4.9
vectorString: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: HIGH
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: HIGH
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

sources: CNVD: CNVD-2023-70090 // JVNDB: JVNDB-2021-020673 // NVD: CVE-2021-40546

PROBLEMTYPE DATA

problemtype:CWE-404

Trust: 1.0

problemtype:Improper shutdown and release of resources (CWE-404) [NVD evaluation ]

Trust: 0.8

sources: JVNDB: JVNDB-2021-020673 // NVD: CVE-2021-40546

EXTERNAL IDS

db:NVDid:CVE-2021-40546

Trust: 3.2

db:JVNDBid:JVNDB-2021-020673

Trust: 0.8

db:CNVDid:CNVD-2023-70090

Trust: 0.6

sources: CNVD: CNVD-2023-70090 // JVNDB: JVNDB-2021-020673 // NVD: CVE-2021-40546

REFERENCES

url:https://github.com/doudoudedi/buffer_overflow/blob/main/tenda%20ac6%20v4.0-denial%20of%20service%20vulnerability.md

Trust: 1.8

url:https://nvd.nist.gov/vuln/detail/cve-2021-40546

Trust: 1.4

sources: CNVD: CNVD-2023-70090 // JVNDB: JVNDB-2021-020673 // NVD: CVE-2021-40546

SOURCES

db:CNVDid:CNVD-2023-70090
db:JVNDBid:JVNDB-2021-020673
db:NVDid:CVE-2021-40546

LAST UPDATE DATE

2024-08-14T14:48:51.945000+00:00


SOURCES UPDATE DATE

db:CNVDid:CNVD-2023-70090date:2023-09-18T00:00:00
db:JVNDBid:JVNDB-2021-020673date:2023-12-13T06:08:00
db:NVDid:CVE-2021-40546date:2023-09-07T19:37:58.750

SOURCES RELEASE DATE

db:CNVDid:CNVD-2023-70090date:2023-09-14T00:00:00
db:JVNDBid:JVNDB-2021-020673date:2023-12-13T00:00:00
db:NVDid:CVE-2021-40546date:2023-09-05T19:15:48.523