Details of VAR-202308-2793

ID

VAR-202308-2793

CVE

CVE-2023-39784

TITLE

Shenzhen Tenda Technology Co.,Ltd. of ac8v4 Out-of-bounds write vulnerability in firmware

Trust: 0.8

sources: JVNDB: JVNDB-2023-022370

DESCRIPTION

Tenda AC8V4 V16.03.34.06 was discovered to contain a stack overflow via the list parameter in the save_virtualser_data function. Shenzhen Tenda Technology Co.,Ltd. of ac8v4 An out-of-bounds write vulnerability exists in firmware.Service operation interruption (DoS) It may be in a state. The Tenda AC8 is a dual-band gigabit wireless router designed for homes with fiber optic connections up to 1000 Mbps. It supports dual-band concurrent transmission rates of up to 1167 Mbps and is equipped with full gigabit ports (1 WAN port + 3 LAN ports), meeting broadband access needs from 100 to 1000 Mbps. An attacker could exploit this vulnerability to cause a denial of service

Trust: 2.25

sources: NVD: CVE-2023-39784 // JVNDB: JVNDB-2023-022370 // CNVD: CNVD-2025-20716 // VULMON: CVE-2023-39784

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2025-20716

AFFECTED PRODUCTS

vendor:	tenda	model:	ac8	scope:	eq	version:	16.03.34.06	Trust: 1.0
vendor:	tenda	model:	ac8v4	scope:	eq	version:	-	Trust: 0.8
vendor:	tenda	model:	ac8v4	scope:	eq	version:	ac8v4 firmware 16.03.34.06	Trust: 0.8
vendor:	tenda	model:	ac8v4	scope:	-	version:	-	Trust: 0.8
vendor:	tenda	model:	ac8v4	scope:	eq	version:	16.03.34.06	Trust: 0.6

sources: CNVD: CNVD-2025-20716 // JVNDB: JVNDB-2023-022370 // NVD: CVE-2023-39784

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2023-39784
value:	HIGH
Trust: 1.0
NVD:	CVE-2023-39784
value:	HIGH
Trust: 0.8
CNVD:	CNVD-2025-20716
value:	HIGH
Trust: 0.6

CNVD:	CNVD-2025-20716
severity:	HIGH
baseScore:	7.8
vectorString:	AV:N/AC:L/AU:N/C:N/I:N/A:C
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	COMPLETE
exploitabilityScore:	10.0
impactScore:	6.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6

nvd@nist.gov:	CVE-2023-39784
baseSeverity:	HIGH
baseScore:	7.5
vectorString:	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	HIGH
exploitabilityScore:	3.9
impactScore:	3.6
version:	3.1
Trust: 1.0
NVD:	CVE-2023-39784
baseSeverity:	HIGH
baseScore:	7.5
vectorString:	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	HIGH
exploitabilityScore:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8

sources: CNVD: CNVD-2025-20716 // JVNDB: JVNDB-2023-022370 // NVD: CVE-2023-39784

PROBLEMTYPE DATA

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

sources: JVNDB: JVNDB-2023-022370 // NVD: CVE-2023-39784

EXTERNAL IDS

db:	NVD	id:	CVE-2023-39784	Trust: 3.3
db:	JVNDB	id:	JVNDB-2023-022370	Trust: 0.8
db:	CNVD	id:	CNVD-2025-20716	Trust: 0.6
db:	VULMON	id:	CVE-2023-39784	Trust: 0.1

sources: CNVD: CNVD-2025-20716 // VULMON: CVE-2023-39784 // JVNDB: JVNDB-2023-022370 // NVD: CVE-2023-39784

REFERENCES

url:	http://tenda.com	Trust: 1.9
url:	https://github.com/xunflash/iot/tree/main/tenda_ac8_v4	Trust: 1.9
url:	https://nvd.nist.gov/vuln/detail/cve-2023-39784	Trust: 1.4
url:	https://nvd.nist.gov	Trust: 0.1

sources: CNVD: CNVD-2025-20716 // VULMON: CVE-2023-39784 // JVNDB: JVNDB-2023-022370 // NVD: CVE-2023-39784

SOURCES

db:	CNVD	id:	CNVD-2025-20716
db:	VULMON	id:	CVE-2023-39784
db:	JVNDB	id:	JVNDB-2023-022370
db:	NVD	id:	CVE-2023-39784

LAST UPDATE DATE

2025-12-18T00:32:28.220000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2025-20716	date:	2025-09-05T00:00:00
db:	VULMON	id:	CVE-2023-39784	date:	2023-08-21T00:00:00
db:	JVNDB	id:	JVNDB-2023-022370	date:	2024-01-23T01:41:00
db:	NVD	id:	CVE-2023-39784	date:	2025-12-08T13:14:17.633

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2025-20716	date:	2025-09-05T00:00:00
db:	VULMON	id:	CVE-2023-39784	date:	2023-08-21T00:00:00
db:	JVNDB	id:	JVNDB-2023-022370	date:	2024-01-23T00:00:00
db:	NVD	id:	CVE-2023-39784	date:	2023-08-21T01:15:08.927