Critical Fortinet FortiClient EMS 0-Day Vulnerability Actively Exploited in the Wild

Fortinet has issued an emergency hotfix after security researchers disclosed a critical zero-day vulnerability in FortiClient EMS that is already being actively exploited by threat actors. Tracked as CVE-2026-35616 and carrying a CVSSv3 score of 9.1 (Critical), the flaw enables unauthenticated attackers to bypass API authentication and authorization controls entirely, allowing them to execute arbitrary […]

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