Details of VAR-202308-3771

ID

VAR-202308-3771

CVE

CVE-2023-40838

TITLE

Tenda AC6 sub_3A1D0 function command execution vulnerability

Trust: 0.6

sources: CNVD: CNVD-2025-21380

DESCRIPTION

Tenda AC6 US_AC6V1.0BR_V15.03.05.16_multi_TD01.bin function 'sub_3A1D0' contains a command execution vulnerability. The Tenda AC6 is a dual-band wireless router launched by Tenda. It supports both 2.4GHz and 5GHz bands, boasts a maximum transmission rate of 1167Mbps, and features dual-band integration. An attacker could exploit this vulnerability to execute arbitrary commands

Trust: 1.44

sources: NVD: CVE-2023-40838 // CNVD: CNVD-2025-21380

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2025-21380

AFFECTED PRODUCTS

vendor:	tenda	model:	ac6	scope:	eq	version:	15.03.05.16	Trust: 1.0
vendor:	tenda	model:	ac6 us ac6v1.0br v15.03.05.16 multi td01.bin	scope:	-	version:	-	Trust: 0.6

sources: CNVD: CNVD-2025-21380 // NVD: CVE-2023-40838

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2023-40838
value:	CRITICAL
Trust: 1.0
CNVD:	CNVD-2025-21380
value:	HIGH
Trust: 0.6

CNVD:	CNVD-2025-21380
severity:	HIGH
baseScore:	10.0
vectorString:	AV:N/AC:L/AU:N/C:C/I:C/A:C
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	COMPLETE
integrityImpact:	COMPLETE
availabilityImpact:	COMPLETE
exploitabilityScore:	10.0
impactScore:	10.0
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6

nvd@nist.gov:	CVE-2023-40838
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: 1.0

sources: CNVD: CNVD-2025-21380 // NVD: CVE-2023-40838

PROBLEMTYPE DATA

problemtype:

CWE-78

Trust: 1.0

sources: NVD: CVE-2023-40838

PATCH

title:

Patch for Tenda AC6 sub_3A1D0 function command execution vulnerability

url:

https://www.cnvd.org.cn/patchInfo/show/732196

Trust: 0.6

sources: CNVD: CNVD-2025-21380

EXTERNAL IDS

db:	NVD	id:	CVE-2023-40838	Trust: 1.6
db:	CNVD	id:	CNVD-2025-21380	Trust: 0.6

sources: CNVD: CNVD-2025-21380 // NVD: CVE-2023-40838

REFERENCES

url:

https://github.com/xyiym/digging/blob/main/tenda/ac6/cmd/1/1.md

Trust: 1.6

sources: CNVD: CNVD-2025-21380 // NVD: CVE-2023-40838

SOURCES

db:	CNVD	id:	CNVD-2025-21380
db:	NVD	id:	CVE-2023-40838

LAST UPDATE DATE

2025-09-18T23:03:12.290000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2025-21380	date:	2025-09-17T00:00:00
db:	NVD	id:	CVE-2023-40838	date:	2023-09-01T20:12:42.427

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2025-21380	date:	2025-09-15T00:00:00
db:	NVD	id:	CVE-2023-40838	date:	2023-08-30T17:15:10.397