A vulnerability, which was classified as critical, was found in LB-LINK BL-AC1900, BL-AC2100_AZ3, BL-AC3600, BL-AX1800, BL-AX5400P and BL-WR9000 up to 20250702. Affected is the function
reboot/restore
of the file /cgi-bin/lighttpd.cgi of the component Web Interface. The manipulation leads to improper authentication.
This vulnerability is traded as CVE-2025-7574. It is possible to launch the attack remotely. Furthermore, there is an exploit available.
It is recommended to apply restrictive firewalling.
The vendor was contacted early about this disclosure but did not respond in any way.