CVE-2025-28032: Totolink a3000ru Firmware

High severity, CVSS 7.3. EPSS: 0.3% chance of exploitation in the next 30 days.

TOTOLINK A800R V4.1.2cu.5137_B20200730, A810R V4.1.2cu.5182_B20201026, A830R V4.1.2cu.5182_B20201102, A950RG V4.1.2cu.5161_B20200903, A3000RU V5.9c.5185_B20201128, and A3100R V4.1.2cu.5247_B20211129 contain a pre-auth buffer overflow vulnerability in the setNoticeCfg function through the IpForm parameter.

Affected products

• Totolink a3000ru Firmware: version 5.9c.5185_b20201128 only
• Totolink a3100r Firmware: version 4.1.2cu.5247_b20211129 only
• Totolink a800r Firmware: version 4.1.2cu.5137_b20200730 only
• Totolink a810r Firmware: version 4.1.2cu.5182_b20201026 only
• Totolink a830r Firmware: version 4.1.2cu.5182_b20201102 only
• Totolink a950rg Firmware: version 4.1.2cu.5161_b20200903 only

Published 2025-04-22. Last modified 2026-06-17.