CVE-2025-9779

A vulnerability was detected in TOTOLINK A702R 4.0.0-B20211108.1423. Affected by this vulnerability is the function sub_4162DC of the file /boafrm/formFilter. The manipulation of the argument ip6addr results in buffer overflow. It is possible to launch the attack remotely. The exploit is now public 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/formFilter/formFilter.md	Broken Link
https://github.com/rew1X/CVE/blob/main/TOTOLINK/A702R/formFilter/formFilter.md#poc	Broken Link
https://vuldb.com/?ctiid.322081	Permissions Required
https://vuldb.com/?id.322081	Third Party Advisory VDB Entry
https://vuldb.com/?submit.640987	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 detectó una vulnerabilidad en TOTOLINK A702R 4.0.0-B20211108.1423. La función sub_4162DC del archivo /boafrm/formFilter está afectada por esta vulnerabilidad. La manipulación del argumento ip6addr provoca un desbordamiento de búfer. Es posible lanzar el ataque de forma remota. El exploit ya es público y puede ser utilizado.

Information

Published : 2025-09-01 13:15

Updated : 2026-09-26 00:10

NVD link : CVE-2025-9779

Mitre link : CVE-2025-9779

CVE.ORG link : CVE-2025-9779

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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