CVE-2025-28256: Totolink a3100r Firmware

Critical severity, CVSS 9.8. EPSS: 1% chance of exploitation in the next 30 days.

An issue in TOTOLINK A3100R V4.1.2cu.5247_B20211129 allows a remote attacker to execute arbitrary code via the setWebWlanIdx of the file /lib/cste_modules/wireless.so.

Affected products

• Totolink a3100r Firmware: version 4.1.2cu.5247_b20211129 only

Published 2025-03-28. Last modified 2026-06-17.