Details of VAR-202211-1536

ID

VAR-202211-1536

CVE

CVE-2022-44253

TITLE

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

Trust: 0.8

sources: JVNDB: JVNDB-2022-021447

DESCRIPTION

TOTOLINK LR350 V9.3.5u.6369_B20220309 contains a post-authentication buffer overflow via parameter ip in the setDiagnosisCfg 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. The TOTOLINK LR350 has a buffer overflow vulnerability. An attacker could exploit this vulnerability to cause remote code execution

Trust: 2.16

sources: NVD: CVE-2022-44253 // JVNDB: JVNDB-2022-021447 // CNVD: CNVD-2025-21017

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2025-21017

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-2025-21017 // JVNDB: JVNDB-2022-021447 // NVD: CVE-2022-44253

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2022-44253
value:	HIGH
Trust: 1.0
134c704f-9b21-4f2e-91b3-4a467353bcc0:	CVE-2022-44253
value:	HIGH
Trust: 1.0
NVD:	CVE-2022-44253
value:	HIGH
Trust: 0.8
CNVD:	CNVD-2025-21017
value:	HIGH
Trust: 0.6
CNNVD:	CNNVD-202211-3377
value:	HIGH
Trust: 0.6

CNVD:	CNVD-2025-21017
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-2022-44253
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-2022-44253
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-2025-21017 // CNNVD: CNNVD-202211-3377 // JVNDB: JVNDB-2022-021447 // NVD: CVE-2022-44253 // NVD: CVE-2022-44253

PROBLEMTYPE DATA

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

sources: JVNDB: JVNDB-2022-021447 // NVD: CVE-2022-44253

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202211-3377

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202211-3377

EXTERNAL IDS

db:	NVD	id:	CVE-2022-44253	Trust: 3.8
db:	JVNDB	id:	JVNDB-2022-021447	Trust: 0.8
db:	CNVD	id:	CNVD-2025-21017	Trust: 0.6
db:	CNNVD	id:	CNNVD-202211-3377	Trust: 0.6

sources: CNVD: CNVD-2025-21017 // CNNVD: CNNVD-202211-3377 // JVNDB: JVNDB-2022-021447 // NVD: CVE-2022-44253

REFERENCES

url:	https://brief-nymphea-813.notion.site/lr350-bof-setdiagnosiscfg-bdae239f42e64a48a57b070b5bf17456	Trust: 2.4
url:	https://nvd.nist.gov/vuln/detail/cve-2022-44253	Trust: 1.4
url:	https://cxsecurity.com/cveshow/cve-2022-44253/	Trust: 0.6

sources: CNVD: CNVD-2025-21017 // CNNVD: CNNVD-202211-3377 // JVNDB: JVNDB-2022-021447 // NVD: CVE-2022-44253

SOURCES

db:	CNVD	id:	CNVD-2025-21017
db:	CNNVD	id:	CNNVD-202211-3377
db:	JVNDB	id:	JVNDB-2022-021447
db:	NVD	id:	CVE-2022-44253

LAST UPDATE DATE

2025-09-12T23:35:23.785000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2025-21017	date:	2025-09-11T00:00:00
db:	CNNVD	id:	CNNVD-202211-3377	date:	2022-11-28T00:00:00
db:	JVNDB	id:	JVNDB-2022-021447	date:	2023-11-10T08:16:00
db:	NVD	id:	CVE-2022-44253	date:	2025-04-25T20:15:32.990

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2025-21017	date:	2025-09-10T00:00:00
db:	CNNVD	id:	CNNVD-202211-3377	date:	2022-11-23T00:00:00
db:	JVNDB	id:	JVNDB-2022-021447	date:	2023-11-10T00:00:00
db:	NVD	id:	CVE-2022-44253	date:	2022-11-23T16:15:10.673