CVE-2025-9780

A flaw has been found in TOTOLINK A702R 4.0.0-B20211108.1423. Affected by this issue is the function sub_419BE0 of the file /boafrm/formIpQoS. This manipulation of the argument mac causes buffer overflow. The attack can be initiated remotely. The exploit has been published and may be used.

CVSS v3 8.8 HIGH
CVSS v2.0 9.0 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

9.0^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:S/C:C/I:C/A:C

Exploitability : 8.0 / Impact : 10.0

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://github.com/rew1X/CVE/blob/main/TOTOLINK/A702R/formIpQoS/formIpQoS.md	Broken Link
https://github.com/rew1X/CVE/blob/main/TOTOLINK/A702R/formIpQoS/formIpQoS.md#poc	Broken Link
https://vuldb.com/?ctiid.322082	Permissions Required
https://vuldb.com/?id.322082	Third Party Advisory VDB Entry
https://vuldb.com/?submit.640988	Third Party Advisory VDB Entry
https://www.totolink.net/	Product

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:totolink:a702r_firmware:4.0.0-b20211108.1423:*:*:*:*:*:*:*

cpe:2.3:h:totolink:a702r:-:*:*:*:*:*:*:*

History

26 Sep 2026, 00:10

Type	Values Removed	Values Added
Summary		(es) Se ha encontrado una falla en TOTOLINK A702R 4.0.0-B20211108.1423. Afectada por este problema es la función sub_419BE0 del archivo /boafrm/formIpQoS. Esta manipulación del argumento mac causa desbordamiento de búfer. El ataque puede iniciarse de forma remota. El exploit ha sido publicado y puede ser utilizado.

Information

Published : 2025-09-01 13:15

Updated : 2026-09-26 00:10

NVD link : CVE-2025-9780

Mitre link : CVE-2025-9780

CVE.ORG link : CVE-2025-9780

JSON object : View

Products Affected

totolink

a702r
a702r_firmware

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

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