Details of VAR-202510-2382

ID

VAR-202510-2382

CVE

CVE-2025-63466

TITLE

TOTOLINK LR350 sub_426EF8 function stack buffer overflow vulnerability

Trust: 0.6

sources: CNVD: CNVD-2025-27571

DESCRIPTION

Totolink LR350 v9.3.5u.6369_B20220309 was discovered to contain a stack overflow via the password parameter in the sub_426EF8 function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted request. The TOTOLINK LR350 is a 4G LTE wireless router launched by TOTOLINK, a Chinese electronics company. It supports converting 4G signals to wired signals and is suitable for home and office use. This vulnerability stems from the fact that the `password` parameter in the `sub_426EF8` function fails to properly validate the length of the input data

Trust: 1.44

sources: NVD: CVE-2025-63466 // CNVD: CNVD-2025-27571

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2025-27571

AFFECTED PRODUCTS

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

sources: CNVD: CNVD-2025-27571 // NVD: CVE-2025-63466

CVSS

SEVERITY

CVSSV2

CVSSV3

134c704f-9b21-4f2e-91b3-4a467353bcc0:	CVE-2025-63466
value:	HIGH
Trust: 1.0
CNVD:	CNVD-2025-27571
value:	HIGH
Trust: 0.6

CNVD:	CNVD-2025-27571
severity:	HIGH
baseScore:	7.8
vectorString:	AV:N/AC:L/AU:N/C:N/I:N/A:C
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	COMPLETE
exploitabilityScore:	10.0
impactScore:	6.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6

134c704f-9b21-4f2e-91b3-4a467353bcc0:	CVE-2025-63466
baseSeverity:	HIGH
baseScore:	7.5
vectorString:	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	HIGH
exploitabilityScore:	3.9
impactScore:	3.6
version:	3.1
Trust: 1.0

sources: CNVD: CNVD-2025-27571 // NVD: CVE-2025-63466

PROBLEMTYPE DATA

problemtype:

CWE-121

Trust: 1.0

sources: NVD: CVE-2025-63466

PATCH

title:

Patch for TOTOLINK LR350 sub_426EF8 function stack buffer overflow vulnerability

url:

https://www.cnvd.org.cn/patchInfo/show/752066

Trust: 0.6

sources: CNVD: CNVD-2025-27571

EXTERNAL IDS

db:	NVD	id:	CVE-2025-63466	Trust: 1.6
db:	CNVD	id:	CNVD-2025-27571	Trust: 0.6

sources: CNVD: CNVD-2025-27571 // NVD: CVE-2025-63466

REFERENCES

url:

https://github.com/0-fool/vulnbycola/blob/main/totolink/lr350/7/1.md

Trust: 1.6

sources: CNVD: CNVD-2025-27571 // NVD: CVE-2025-63466

SOURCES

db:	CNVD	id:	CNVD-2025-27571
db:	NVD	id:	CVE-2025-63466

LAST UPDATE DATE

2025-11-19T23:24:22.544000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2025-27571	date:	2025-11-11T00:00:00
db:	NVD	id:	CVE-2025-63466	date:	2025-11-05T17:30:45.043

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2025-27571	date:	2025-11-10T00:00:00
db:	NVD	id:	CVE-2025-63466	date:	2025-10-31T16:15:40.793