CVE-2025-8136

A vulnerability, which was classified as critical, was found in TOTOLINK A702R 4.0.0-B20230721.1521. Affected is an unknown function of the file /boafrm/formFilter of the component HTTP POST Request Handler. The manipulation of the argument ip6addr leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.
References
Link Resource
https://github.com/panda666-888/vuls/blob/main/totolink/a702r/formFilter.md Exploit Third Party Advisory
https://vuldb.com/?ctiid.317532 Permissions Required VDB Entry
https://vuldb.com/?id.317532 Third Party Advisory VDB Entry
https://vuldb.com/?submit.620482 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

17 Jun 2026, 10:06

Type Values Removed Values Added
Summary
  • (es) Se encontró una vulnerabilidad clasificada como crítica en TOTOLINK A702R 4.0.0-B20230721.1521. Se ve afectada una función desconocida del archivo /boafrm/formFilter del componente HTTP POST Request Handler. La manipulación del argumento ip6addr provoca un desbordamiento del búfer. El ataque puede ejecutarse en remoto. Se ha hecho público el exploit y puede que sea utilizado.

28 Jul 2025, 13:11

Type Values Removed Values Added
First Time Totolink a702r
Totolink a702r Firmware
Totolink
CPE cpe:2.3:h:totolink:a702r:-:*:*:*:*:*:*:*
cpe:2.3:o:totolink:a702r_firmware:4.0.0-b20230721.1521:*:*:*:*:*:*:*
References () https://github.com/panda666-888/vuls/blob/main/totolink/a702r/formFilter.md - () https://github.com/panda666-888/vuls/blob/main/totolink/a702r/formFilter.md - Exploit, Third Party Advisory
References () https://vuldb.com/?ctiid.317532 - () https://vuldb.com/?ctiid.317532 - Permissions Required, VDB Entry
References () https://vuldb.com/?id.317532 - () https://vuldb.com/?id.317532 - Third Party Advisory, VDB Entry
References () https://vuldb.com/?submit.620482 - () https://vuldb.com/?submit.620482 - Third Party Advisory, VDB Entry
References () https://www.totolink.net/ - () https://www.totolink.net/ - Product

25 Jul 2025, 07:15

Type Values Removed Values Added
New CVE

Information

Published : 2025-07-25 07:15

Updated : 2026-06-17 10:06


NVD link : CVE-2025-8136

Mitre link : CVE-2025-8136

CVE.ORG link : CVE-2025-8136


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')