Fortinet Releases Emergency Patch for Zero-Day Authentication Bypass Flaw in FortiClient

Fortinet issued an emergency patch for a zero-day authentication bypass flaw in FortiClient, tracked as CVE-2026-35616. The vulnerability is part of a series of Fortinet vulnerabilities that have been actively exploited in the wild. No specific dates for the patch release or exploitation timeline were provided. The flaw affects FortiClient, though the exact versions impacted were not detailed. The technical impact involves an authentication bypass, but further specifics on attack vectors or consequences were not disclosed.