Details of VAR-202211-1535

ID

VAR-202211-1535

CVE

CVE-2022-44259

TITLE

TOTOLINK of lr350 Out-of-bounds write vulnerability in firmware

Trust: 0.8

sources: JVNDB: JVNDB-2022-021441

DESCRIPTION

TOTOLINK LR350 V9.3.5u.6369_B20220309 contains a post-authentication buffer overflow via parameter week, sTime, and eTime in the setParentalRules function. TOTOLINK of lr350 An out-of-bounds write vulnerability exists in 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. This vulnerability could allow an attacker to cause remote code execution

Trust: 2.16

sources: NVD: CVE-2022-44259 // JVNDB: JVNDB-2022-021441 // CNVD: CNVD-2025-21013

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2025-21013

AFFECTED PRODUCTS

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

sources: CNVD: CNVD-2025-21013 // JVNDB: JVNDB-2022-021441 // NVD: CVE-2022-44259

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2022-44259
value:	HIGH
Trust: 1.0
134c704f-9b21-4f2e-91b3-4a467353bcc0:	CVE-2022-44259
value:	HIGH
Trust: 1.0
NVD:	CVE-2022-44259
value:	HIGH
Trust: 0.8
CNVD:	CNVD-2025-21013
value:	HIGH
Trust: 0.6
CNNVD:	CNNVD-202211-3395
value:	HIGH
Trust: 0.6

CNVD:	CNVD-2025-21013
severity:	HIGH
baseScore:	9.0
vectorString:	AV:N/AC:L/AU:S/C:C/I:C/A:C
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	SINGLE
confidentialityImpact:	COMPLETE
integrityImpact:	COMPLETE
availabilityImpact:	COMPLETE
exploitabilityScore:	8.0
impactScore:	10.0
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6

nvd@nist.gov:	CVE-2022-44259
baseSeverity:	HIGH
baseScore:	8.8
vectorString:	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	LOW
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	2.8
impactScore:	5.9
version:	3.1
Trust: 2.0
NVD:	CVE-2022-44259
baseSeverity:	HIGH
baseScore:	8.8
vectorString:	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	LOW
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8

sources: CNVD: CNVD-2025-21013 // CNNVD: CNNVD-202211-3395 // JVNDB: JVNDB-2022-021441 // NVD: CVE-2022-44259 // NVD: CVE-2022-44259

PROBLEMTYPE DATA

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

sources: JVNDB: JVNDB-2022-021441 // NVD: CVE-2022-44259

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202211-3395

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202211-3395

EXTERNAL IDS

db:	NVD	id:	CVE-2022-44259	Trust: 3.8
db:	JVNDB	id:	JVNDB-2022-021441	Trust: 0.8
db:	CNVD	id:	CNVD-2025-21013	Trust: 0.6
db:	CNNVD	id:	CNNVD-202211-3395	Trust: 0.6

sources: CNVD: CNVD-2025-21013 // CNNVD: CNNVD-202211-3395 // JVNDB: JVNDB-2022-021441 // NVD: CVE-2022-44259

REFERENCES

url:	https://brief-nymphea-813.notion.site/lr350-bof-setparentalrules-fe0c0cc8b9bd44b48c527f76e69d402a	Trust: 2.4
url:	https://nvd.nist.gov/vuln/detail/cve-2022-44259	Trust: 1.4
url:	https://cxsecurity.com/cveshow/cve-2022-44259/	Trust: 0.6

sources: CNVD: CNVD-2025-21013 // CNNVD: CNNVD-202211-3395 // JVNDB: JVNDB-2022-021441 // NVD: CVE-2022-44259

SOURCES

db:	CNVD	id:	CNVD-2025-21013
db:	CNNVD	id:	CNNVD-202211-3395
db:	JVNDB	id:	JVNDB-2022-021441
db:	NVD	id:	CVE-2022-44259

LAST UPDATE DATE

2025-09-12T23:38:51.590000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2025-21013	date:	2025-09-11T00:00:00
db:	CNNVD	id:	CNNVD-202211-3395	date:	2022-11-28T00:00:00
db:	JVNDB	id:	JVNDB-2022-021441	date:	2023-11-10T08:16:00
db:	NVD	id:	CVE-2022-44259	date:	2025-04-25T20:15:34.093

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2025-21013	date:	2025-09-10T00:00:00
db:	CNNVD	id:	CNNVD-202211-3395	date:	2022-11-23T00:00:00
db:	JVNDB	id:	JVNDB-2022-021441	date:	2023-11-10T00:00:00
db:	NVD	id:	CVE-2022-44259	date:	2022-11-23T16:15:10.973