Details of VAR-202510-2331

ID

VAR-202510-2331

CVE

CVE-2025-63459

TITLE

TOTOLINK A7000R sub_421CF0 Function Stack Buffer Overflow Vulnerability

Trust: 0.6

sources: CNVD: CNVD-2025-27266

DESCRIPTION

Totolink A7000R v9.1.0u.6115_B20201022 was discovered to contain a stack overflow via the ssid5g parameter in the sub_421CF0 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 ssid5g parameter in the sub_421CF0 function fails to properly validate the length of the input data

Trust: 1.44

sources: NVD: CVE-2025-63459 // CNVD: CNVD-2025-27266

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2025-27266

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-2025-27266 // NVD: CVE-2025-63459

CVSS

SEVERITY

CVSSV2

CVSSV3

134c704f-9b21-4f2e-91b3-4a467353bcc0:	CVE-2025-63459
value:	HIGH
Trust: 1.0
CNVD:	CNVD-2025-27266
value:	HIGH
Trust: 0.6

CNVD:	CNVD-2025-27266
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-2025-63459
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-2025-27266 // NVD: CVE-2025-63459

PROBLEMTYPE DATA

problemtype:

CWE-121

Trust: 1.0

sources: NVD: CVE-2025-63459

EXTERNAL IDS

db:	NVD	id:	CVE-2025-63459	Trust: 1.6
db:	CNVD	id:	CNVD-2025-27266	Trust: 0.6

sources: CNVD: CNVD-2025-27266 // NVD: CVE-2025-63459

REFERENCES

url:

https://github.com/0-fool/vulnbycola/blob/main/totolink/a7000/5/1.md

Trust: 1.6

sources: CNVD: CNVD-2025-27266 // NVD: CVE-2025-63459

SOURCES

db:	CNVD	id:	CNVD-2025-27266
db:	NVD	id:	CVE-2025-63459

LAST UPDATE DATE

2025-11-18T15:38:37.801000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2025-27266	date:	2025-11-07T00:00:00
db:	NVD	id:	CVE-2025-63459	date:	2025-11-05T17:29:18.877

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2025-27266	date:	2025-11-07T00:00:00
db:	NVD	id:	CVE-2025-63459	date:	2025-10-31T18:15:33.753