CVE-2026-51617

TOTOLINK T6 (firmware 4.1.5cu.748_B20211015) suffers from incorrect access control in the getSysStatusCfg function. An unauthenticated attacker can send a crafted POST request to /cgi-bin/cstecgi.cgi to disclose sensitive data including operation mode, firmware version, serial number, WAN/LAN IP ...