Details of VAR-202510-2332

ID

VAR-202510-2332

CVE

CVE-2025-63462

TITLE

TOTOLINK A7000R sub_421A04 Function Stack Buffer Overflow Vulnerability

Trust: 0.6

sources: CNVD: CNVD-2025-27265

DESCRIPTION

Totolink A7000R v9.1.0u.6115_B20201022 was discovered to contain a stack overflow via the wifiOff parameter in the sub_421A04 function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted request. The TOTOLINK A7000R is a wireless router launched by TOTOLINK Electronics Co., Ltd. in China. It supports WiFi 7 technology and is suitable for home or small business network environments. This vulnerability stems from the fact that the wifiOff parameter in the sub_421A04 function fails to properly validate the length of the input data

Trust: 1.44

sources: NVD: CVE-2025-63462 // CNVD: CNVD-2025-27265

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2025-27265

AFFECTED PRODUCTS

vendor:	totolink	model:	a7000r	scope:	eq	version:	9.1.0u.6115_b20201022	Trust: 1.0
vendor:	totolink	model:	a7000r v9.1.0u.6115 b20201022	scope:	-	version:	-	Trust: 0.6

sources: CNVD: CNVD-2025-27265 // NVD: CVE-2025-63462

CVSS

SEVERITY

CVSSV2

CVSSV3

134c704f-9b21-4f2e-91b3-4a467353bcc0:	CVE-2025-63462
value:	HIGH
Trust: 1.0
CNVD:	CNVD-2025-27265
value:	HIGH
Trust: 0.6

CNVD:	CNVD-2025-27265
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-2025-63462
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-2025-27265 // NVD: CVE-2025-63462

PROBLEMTYPE DATA

problemtype:

CWE-121

Trust: 1.0

sources: NVD: CVE-2025-63462

EXTERNAL IDS

db:	NVD	id:	CVE-2025-63462	Trust: 1.6
db:	CNVD	id:	CNVD-2025-27265	Trust: 0.6

sources: CNVD: CNVD-2025-27265 // NVD: CVE-2025-63462

REFERENCES

url:

https://github.com/0-fool/vulnbycola/blob/main/totolink/a7000/3/1.md

Trust: 1.6

sources: CNVD: CNVD-2025-27265 // NVD: CVE-2025-63462

SOURCES

db:	CNVD	id:	CNVD-2025-27265
db:	NVD	id:	CVE-2025-63462

LAST UPDATE DATE

2025-11-18T15:38:37.819000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2025-27265	date:	2025-11-07T00:00:00
db:	NVD	id:	CVE-2025-63462	date:	2025-11-05T17:29:54.143

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2025-27265	date:	2025-11-07T00:00:00
db:	NVD	id:	CVE-2025-63462	date:	2025-10-31T17:15:47.690