CVE-2025-4834: Totolink a3002r Firmware

High severity, CVSS 8.8. EPSS: 0.8% chance of exploitation in the next 30 days.

A vulnerability was found in TOTOLINK A702R, A3002R and A3002RU 3.0.0-B20230809.1615. It has been classified as critical. Affected is an unknown function of the file /boafrm/formSetLg of the component HTTP POST Request Handler. The manipulation of the argument submit-url leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

Affected products

• Totolink a3002r Firmware: version 3.0.0-b20230809.1615 only
• Totolink a3002ru Firmware: version 3.0.0-b20230809.1615 only
• Totolink a702r Firmware: version 3.0.0-b20230809.1615 only

Published 2025-05-17. Last modified 2026-06-17.