> Attackers exploited this critical FortiClient EMS bug as a 0-day

[SOURCE] The Register Security [AUTHOR: Jessica Lyons] [DATE: 06/04/2026 18:14] [LANGUAGE: EN]

CISA added the flaw to KEV after Fortinet confirmed exploitation in the wild Fortinet released an emergency patch over the weekend for a critical FortiClient Enterprise Management Server (EMS) bug believed to be under attack since at least March 31.…

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