CVE-2026-51617

High severity, CVSS 7.5. EPSS: 0.3% chance of exploitation in the next 30 days.

Incorrect access control in the getSysStatusCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain sensitive information such as operation mode, firmware version, serial number, WAN/LAN IP addresses, WiFi SSID, encryption keys, and connected client statistics via sending a crafted POST request to /cgi-bin/cstecgi.cgi.

Published 2026-08-28. Last modified 2026-09-01.