CVE-2025-68716: Kaysus Ks-WR3600 Firmware

High severity, CVSS 8.4. EPSS: 0.2% chance of exploitation in the next 30 days.

KAYSUS KS-WR3600 routers with firmware 1.0.5.9.1 enable the SSH service enabled by default on the LAN interface. The root account is configured with no password, and administrators cannot disable SSH or enforce authentication via the CLI or web GUI. This allows any LAN-adjacent attacker to trivially gain root shell access and execute arbitrary commands with full privileges.

Affected products

• Kaysus Ks-WR3600 Firmware: version 1.0.5.9.1 only

Published 2026-01-08. Last modified 2026-06-17.