CVE-2025-4823: 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 rated as critical. Affected by this issue is the function submit-url of the file /boafrm/formReflashClientTbl of the component HTTP POST Request Handler. The manipulation leads to buffer overflow. The attack may be launched 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.