Details of VAR-202406-1044

ID

VAR-202406-1044

CVE

CVE-2024-37640

TITLE

TOTOLINK of a3700r Stack-based buffer overflow vulnerability in firmware

Trust: 0.8

sources: JVNDB: JVNDB-2024-021607

DESCRIPTION

TOTOLINK A3700R V9.1.2u.6165_20211012 was discovered to contain a stack overflow via ssid5g in the function setWiFiEasyGuestCfg. TOTOLINK of a3700r A stack-based buffer overflow vulnerability exists in the firmware.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state. TOTOLINK A3700R is a wireless router produced by China's TOTOLINK Electronics. TOTOLINK A3700R has a buffer overflow vulnerability. The vulnerability is caused by the failure of ssid5g to correctly verify the length of the input data in the setWiFiEasyGuestCfg function. Attackers can exploit this vulnerability to execute arbitrary code on the system or cause a denial of service

Trust: 2.16

sources: NVD: CVE-2024-37640 // JVNDB: JVNDB-2024-021607 // CNVD: CNVD-2025-14817

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2025-14817

AFFECTED PRODUCTS

vendor:	totolink	model:	a3700r	scope:	eq	version:	9.1.2u.6165_20211012	Trust: 1.0
vendor:	totolink	model:	a3700r	scope:	eq	version:	a3700r firmware 9.1.2u.6165 20211012	Trust: 0.8
vendor:	totolink	model:	a3700r	scope:	eq	version:	-	Trust: 0.8
vendor:	totolink	model:	a3700r	scope:	-	version:	-	Trust: 0.8
vendor:	totolink	model:	a3700r v9.1.2u.6165 20211012	scope:	-	version:	-	Trust: 0.6

sources: CNVD: CNVD-2025-14817 // JVNDB: JVNDB-2024-021607 // NVD: CVE-2024-37640

CVSS

SEVERITY

CVSSV2

CVSSV3

134c704f-9b21-4f2e-91b3-4a467353bcc0:	CVE-2024-37640
value:	HIGH
Trust: 1.0
OTHER:	JVNDB-2024-021607
value:	HIGH
Trust: 0.8
CNVD:	CNVD-2025-14817
value:	HIGH
Trust: 0.6

CNVD:	CNVD-2025-14817
severity:	HIGH
baseScore:	8.3
vectorString:	AV:A/AC:L/AU:N/C:C/I:C/A:C
accessVector:	ADJACENT_NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	COMPLETE
integrityImpact:	COMPLETE
availabilityImpact:	COMPLETE
exploitabilityScore:	6.5
impactScore:	10.0
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6

134c704f-9b21-4f2e-91b3-4a467353bcc0:	CVE-2024-37640
baseSeverity:	HIGH
baseScore:	8.8
vectorString:	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector:	ADJACENT
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	2.8
impactScore:	5.9
version:	3.1
Trust: 1.0
OTHER:	JVNDB-2024-021607
baseSeverity:	HIGH
baseScore:	8.8
vectorString:	CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector:	ADJACENT 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-2025-14817 // JVNDB: JVNDB-2024-021607 // NVD: CVE-2024-37640

PROBLEMTYPE DATA

problemtype:	CWE-121	Trust: 1.0
problemtype:	Stack-based buffer overflow (CWE-121) [ others ]	Trust: 0.8

sources: JVNDB: JVNDB-2024-021607 // NVD: CVE-2024-37640

EXTERNAL IDS

db:	NVD	id:	CVE-2024-37640	Trust: 3.2
db:	JVNDB	id:	JVNDB-2024-021607	Trust: 0.8
db:	CNVD	id:	CNVD-2025-14817	Trust: 0.6

sources: CNVD: CNVD-2025-14817 // JVNDB: JVNDB-2024-021607 // NVD: CVE-2024-37640

REFERENCES

url:	https://github.com/s4ndw1ch136/iot-vuln-reports/tree/main/totolink/a3700r/setwifieasyguestcfg	Trust: 2.4
url:	https://nvd.nist.gov/vuln/detail/cve-2024-37640	Trust: 0.8

sources: CNVD: CNVD-2025-14817 // JVNDB: JVNDB-2024-021607 // NVD: CVE-2024-37640

SOURCES

db:	CNVD	id:	CNVD-2025-14817
db:	JVNDB	id:	JVNDB-2024-021607
db:	NVD	id:	CVE-2024-37640

LAST UPDATE DATE

2025-07-04T23:43:27.276000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2025-14817	date:	2025-07-02T00:00:00
db:	JVNDB	id:	JVNDB-2024-021607	date:	2025-04-08T08:05:00
db:	NVD	id:	CVE-2024-37640	date:	2025-04-03T15:41:39.837

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2025-14817	date:	2025-07-02T00:00:00
db:	JVNDB	id:	JVNDB-2024-021607	date:	2025-04-08T00:00:00
db:	NVD	id:	CVE-2024-37640	date:	2024-06-14T14:15:11.080