CVE-2026-51742

Medium severity, CVSS 5.9. EPSS: 0.4% chance of exploitation in the next 30 days.

Incorrect access control in the discoverWan function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to trigger WAN discovery logic via sending a crafted POST request to /cgi-bin/cstecgi.cgi.

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