Details of VAR-202406-2602

ID

VAR-202406-2602

CVE

CVE-2024-37631

TITLE

TOTOLINK of a3700r Stack-based buffer overflow vulnerability in firmware

Trust: 0.8

sources: JVNDB: JVNDB-2024-021439

DESCRIPTION

TOTOLINK A3700R V9.1.2u.6165_20211012 was discovered to contain a stack overflow via the File parameter in function UploadCustomModule. 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 File parameter in the UploadCustomModule function failing to properly verify the length of the input data. Attackers can exploit this vulnerability to execute arbitrary code on the system or cause a denial of service

Trust: 2.16

sources: NVD: CVE-2024-37631 // JVNDB: JVNDB-2024-021439 // CNVD: CNVD-2025-14818

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2025-14818

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

sources: CNVD: CNVD-2025-14818 // JVNDB: JVNDB-2024-021439 // NVD: CVE-2024-37631

CVSS

SEVERITY

CVSSV2

CVSSV3

134c704f-9b21-4f2e-91b3-4a467353bcc0:	CVE-2024-37631
value:	HIGH
Trust: 1.0
OTHER:	JVNDB-2024-021439
value:	HIGH
Trust: 0.8
CNVD:	CNVD-2025-14818
value:	HIGH
Trust: 0.6

CNVD:	CNVD-2025-14818
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-2024-37631
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-2024-021439
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-2025-14818 // JVNDB: JVNDB-2024-021439 // NVD: CVE-2024-37631

PROBLEMTYPE DATA

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

sources: JVNDB: JVNDB-2024-021439 // NVD: CVE-2024-37631

EXTERNAL IDS

db:	NVD	id:	CVE-2024-37631	Trust: 3.2
db:	JVNDB	id:	JVNDB-2024-021439	Trust: 0.8
db:	CNVD	id:	CNVD-2025-14818	Trust: 0.6

sources: CNVD: CNVD-2025-14818 // JVNDB: JVNDB-2024-021439 // NVD: CVE-2024-37631

REFERENCES

url:	https://github.com/s4ndw1ch136/iot-vuln-reports/blob/main/totolink/a3700r/uploadcustommodule/readme.md	Trust: 2.4
url:	https://nvd.nist.gov/vuln/detail/cve-2024-37631	Trust: 0.8

sources: CNVD: CNVD-2025-14818 // JVNDB: JVNDB-2024-021439 // NVD: CVE-2024-37631

SOURCES

db:	CNVD	id:	CNVD-2025-14818
db:	JVNDB	id:	JVNDB-2024-021439
db:	NVD	id:	CVE-2024-37631

LAST UPDATE DATE

2025-07-04T23:50:32.161000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2025-14818	date:	2025-07-02T00:00:00
db:	JVNDB	id:	JVNDB-2024-021439	date:	2025-04-04T06:12:00
db:	NVD	id:	CVE-2024-37631	date:	2025-04-03T15:41:01.313

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2025-14818	date:	2025-07-02T00:00:00
db:	JVNDB	id:	JVNDB-2024-021439	date:	2025-04-04T00:00:00
db:	NVD	id:	CVE-2024-37631	date:	2024-06-13T19:15:52.270