Details of VAR-202309-2192

ID

VAR-202309-2192

CVE

CVE-2023-44021

TITLE

Tenda of AC10U Buffer error vulnerability in firmware

Trust: 0.8

sources: JVNDB: JVNDB-2023-013140

DESCRIPTION

Tenda AC10U v1.0 US_AC10UV1.0RTL_V15.03.06.49_multi_TDE01 was discovered to contain a stack overflow via the formSetClientState function. Tenda of AC10U A buffer error vulnerability exists in the firmware.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state. The Tenda AC10U is a dual-band gigabit wireless router from Tenda Technology, designed for fiber optic homes with speeds of 200 Mbps and above. It supports 802.11ac dual-band technology (2.4GHz and 5GHz), with a theoretical WiFi speed of up to 867Mbps. This vulnerability stems from a stack overflow in the `formSetClientState` function, allowing attackers to remotely execute arbitrary code, severely jeopardizing network devices

Trust: 2.16

sources: NVD: CVE-2023-44021 // JVNDB: JVNDB-2023-013140 // CNVD: CNVD-2025-28700

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2025-28700

AFFECTED PRODUCTS

vendor:	tendacn	model:	ac10u	scope:	eq	version:	15.03.06.49_multi_tde01	Trust: 1.0
vendor:	tenda	model:	ac10u	scope:	eq	version:	ac10u firmware 15.03.06.49 multi tde01	Trust: 0.8
vendor:	tenda	model:	ac10u	scope:	-	version:	-	Trust: 0.8
vendor:	tenda	model:	ac10u	scope:	eq	version:	-	Trust: 0.8
vendor:	tenda	model:	ac10u us ac10uv1.0rtl v15.03.06.49 multi tde01	scope:	eq	version:	v1.0	Trust: 0.6

sources: CNVD: CNVD-2025-28700 // JVNDB: JVNDB-2023-013140 // NVD: CVE-2023-44021

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2023-44021
value:	CRITICAL
Trust: 1.0
NVD:	CVE-2023-44021
value:	CRITICAL
Trust: 0.8
CNVD:	CNVD-2025-28700
value:	HIGH
Trust: 0.6

CNVD:	CNVD-2025-28700
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-2023-44021
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
NVD:	CVE-2023-44021
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-2025-28700 // JVNDB: JVNDB-2023-013140 // NVD: CVE-2023-44021

PROBLEMTYPE DATA

problemtype:	CWE-119	Trust: 1.0
problemtype:	Buffer error (CWE-119) [NVD evaluation ]	Trust: 0.8

sources: JVNDB: JVNDB-2023-013140 // NVD: CVE-2023-44021

PATCH

title:

Patch for Tenda AC10U formSetClientState function stack buffer overflow vulnerability

url:

https://www.cnvd.org.cn/patchInfo/show/754891

Trust: 0.6

sources: CNVD: CNVD-2025-28700

EXTERNAL IDS

db:	NVD	id:	CVE-2023-44021	Trust: 3.2
db:	JVNDB	id:	JVNDB-2023-013140	Trust: 0.8
db:	CNVD	id:	CNVD-2025-28700	Trust: 0.6

sources: CNVD: CNVD-2025-28700 // JVNDB: JVNDB-2023-013140 // NVD: CVE-2023-44021

REFERENCES

url:	https://github.com/aixiao0621/tenda/blob/main/ac10u/2/0.md	Trust: 2.4
url:	https://nvd.nist.gov/vuln/detail/cve-2023-44021	Trust: 0.8

sources: CNVD: CNVD-2025-28700 // JVNDB: JVNDB-2023-013140 // NVD: CVE-2023-44021

SOURCES

db:	CNVD	id:	CNVD-2025-28700
db:	JVNDB	id:	JVNDB-2023-013140
db:	NVD	id:	CVE-2023-44021

LAST UPDATE DATE

2025-11-20T23:32:06.943000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2025-28700	date:	2025-11-19T00:00:00
db:	JVNDB	id:	JVNDB-2023-013140	date:	2023-12-20T03:10:00
db:	NVD	id:	CVE-2023-44021	date:	2023-09-27T18:44:39.470

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2025-28700	date:	2025-11-17T00:00:00
db:	JVNDB	id:	JVNDB-2023-013140	date:	2023-12-20T00:00:00
db:	NVD	id:	CVE-2023-44021	date:	2023-09-27T15:19:35.350