CVE-2025-8140

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2025-8140
A vulnerability was found in TOTOLINK A702R 4.0.0-B20230721.1521. It has been declared as critical. This vulnerability affects unknown code of the file /boafrm/formWlanMultipleAP of the component HTTP POST Request Handler. The manipulation of the argument submit-url leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

8.8 /10

CVSS v3 : HIGH

V3 Legend

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

V2 Legend

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/panda666-888/vuls/blob/main/totolink/a702r/formWlanMultipleAP.md Exploit Third Party Advisory
https://vuldb.com/?ctiid.317536 Permissions Required
https://vuldb.com/?id.317536 Third Party Advisory VDB Entry
https://vuldb.com/?submit.620486 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-b20230721.1521:*:*:*:*:*:*:*
cpe:2.3:h:totolink:a702r:-:*:*:*:*:*:*:*
History

28 Jul 2025, 21:16

Type Values Removed Values Added
References () https://github.com/panda666-888/vuls/blob/main/totolink/a702r/formWlanMultipleAP.md - () https://github.com/panda666-888/vuls/blob/main/totolink/a702r/formWlanMultipleAP.md - Exploit, Third Party Advisory
References () https://vuldb.com/?ctiid.317536 - () https://vuldb.com/?ctiid.317536 - Permissions Required
References () https://vuldb.com/?id.317536 - () https://vuldb.com/?id.317536 - Third Party Advisory, VDB Entry
References () https://vuldb.com/?submit.620486 - () https://vuldb.com/?submit.620486 - Third Party Advisory, VDB Entry
References () https://www.totolink.net/ - () https://www.totolink.net/ - Product
First Time Totolink a702r Firmware
Totolink
Totolink a702r
Summary
  • (es) Se encontró una vulnerabilidad en TOTOLINK A702R 4.0.0-B20230721.1521. Se ha declarado crítica. Esta vulnerabilidad afecta al código desconocido del archivo /boafrm/formWlanMultipleAP del componente HTTP POST Request Handler. La manipulación del argumento "submit-url" provoca un desbordamiento del búfer. Es posible ejecutar el ataque de forma remota. Se ha hecho público el exploit y puede que sea utilizado.
CPE cpe:2.3:h:totolink:a702r:-:*:*:*:*:*:*:*
cpe:2.3:o:totolink:a702r_firmware:4.0.0-b20230721.1521:*:*:*:*:*:*:*

25 Jul 2025, 09:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-07-25 09:15

Updated : 2025-07-28 21:16

NVD link : CVE-2025-8140

Mitre link : CVE-2025-8140

CVE.ORG link : CVE-2025-8140

JSON object : View

Products Affected

totolink

  • a702r_firmware
  • a702r
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')