CVE-2025-63462

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/0-fool/VulnbyCola/blob/main/TOTOLINK/A7000/3/1.md	Exploit Third Party Advisory
https://github.com/0-fool/VulnbyCola/blob/main/TOTOLINK/A7000/3/1.md	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:totolink:a7000r_firmware:9.1.0u.6115_b20201022:*:*:*:*:*:*:*

cpe:2.3:h:totolink:a7000r:-:*:*:*:*:*:*:*

History

27 Oct 2026, 11:10

Type	Values Removed	Values Added
Summary		(es) Totolink A7000R v9.1.0u.6115_B20201022 se descubrió que contenía un desbordamiento de pila a través del parámetro wifiOff en la función sub_421A04. Esta vulnerabilidad permite a los atacantes causar una Denegación de Servicio (DoS) a través de una solicitud manipulada.

Information

Published : 2025-10-31 17:15

Updated : 2026-10-27 11:10

NVD link : CVE-2025-63462

Mitre link : CVE-2025-63462

CVE.ORG link : CVE-2025-63462

JSON object : View

Products Affected

totolink

a7000r
a7000r_firmware

CWE

CWE-121

Stack-based Buffer Overflow

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