KAYSUS KS-WR1200 routers with firmware 107 expose SSH and TELNET services on the LAN interface with hardcoded root credentials (root:12345678). The administrator cannot disable these services or change the hardcoded password. (Changing the management GUI password does not affect SSH/TELNET authentication.) Any LAN-adjacent attacker can trivially log in with root privileges.
https://www.kaysus.com/ks_wr3600__wifi_7_be3600_wireless_router.html
https://github.com/actuator/cve/tree/main/KAYSUS
https://github.com/actuator/cve/blob/main/KAYSUS/CVE-2025-68718.txt