Details of VAR-202405-4030

ID

VAR-202405-4030

CVE

CVE-2024-34308

TITLE

TOTOLINK of lr350 Stack-based buffer overflow vulnerability in firmware

Trust: 0.8

sources: JVNDB: JVNDB-2024-021796

DESCRIPTION

TOTOLINK LR350 V9.3.5u.6369_B20220309 was discovered to contain a stack overflow via the password parameter in the function urldecode. TOTOLINK of lr350 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. The TOTOLINK LR350 is a 4G LTE router released by China's TOTOLINK Electronics. It converts 4G signals into wired signals and is suitable for home and office use. The TOTOLINK LR350 suffers from a buffer overflow vulnerability. This vulnerability stems from the failure of the password parameter in the urldecode function to properly validate the length of the input data. An attacker could exploit this vulnerability to execute arbitrary code on the system or cause a denial of service

Trust: 2.16

sources: NVD: CVE-2024-34308 // JVNDB: JVNDB-2024-021796 // CNVD: CNVD-2025-17699

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2025-17699

AFFECTED PRODUCTS

vendor:	totolink	model:	lr350	scope:	eq	version:	9.3.5u.6369_b20220309	Trust: 1.0
vendor:	totolink	model:	lr350	scope:	eq	version:	lr350 firmware 9.3.5u.6369 b20220309	Trust: 0.8
vendor:	totolink	model:	lr350	scope:	eq	version:	-	Trust: 0.8
vendor:	totolink	model:	lr350	scope:	-	version:	-	Trust: 0.8
vendor:	totolink	model:	lr350 v9.3.5u.6369 b20220309	scope:	-	version:	-	Trust: 0.6

sources: CNVD: CNVD-2025-17699 // JVNDB: JVNDB-2024-021796 // NVD: CVE-2024-34308

CVSS

SEVERITY

CVSSV2

CVSSV3

134c704f-9b21-4f2e-91b3-4a467353bcc0:	CVE-2024-34308
value:	HIGH
Trust: 1.0
OTHER:	JVNDB-2024-021796
value:	HIGH
Trust: 0.8
CNVD:	CNVD-2025-17699
value:	HIGH
Trust: 0.6

CNVD:	CNVD-2025-17699
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-2024-34308
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-2024-021796
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-2025-17699 // JVNDB: JVNDB-2024-021796 // NVD: CVE-2024-34308

PROBLEMTYPE DATA

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

sources: JVNDB: JVNDB-2024-021796 // NVD: CVE-2024-34308

EXTERNAL IDS

db:	NVD	id:	CVE-2024-34308	Trust: 3.2
db:	JVNDB	id:	JVNDB-2024-021796	Trust: 0.8
db:	CNVD	id:	CNVD-2025-17699	Trust: 0.6

sources: CNVD: CNVD-2025-17699 // JVNDB: JVNDB-2024-021796 // NVD: CVE-2024-34308

REFERENCES

url:	https://github.com/s4ndw1ch136/iot-vuln-reports/blob/main/totolink%20lr350/readme.md	Trust: 1.6
url:	https://nvd.nist.gov/vuln/detail/cve-2024-34308	Trust: 0.8

sources: CNVD: CNVD-2025-17699 // JVNDB: JVNDB-2024-021796 // NVD: CVE-2024-34308

SOURCES

db:	CNVD	id:	CNVD-2025-17699
db:	JVNDB	id:	JVNDB-2024-021796
db:	NVD	id:	CVE-2024-34308

LAST UPDATE DATE

2025-08-09T23:04:05.406000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2025-17699	date:	2025-08-07T00:00:00
db:	JVNDB	id:	JVNDB-2024-021796	date:	2025-04-10T02:59:00
db:	NVD	id:	CVE-2024-34308	date:	2025-04-04T14:46:54.697

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2025-17699	date:	2025-08-07T00:00:00
db:	JVNDB	id:	JVNDB-2024-021796	date:	2025-04-10T00:00:00
db:	NVD	id:	CVE-2024-34308	date:	2024-05-14T15:38:38.800