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New FortiClient EMS flaw exploited in attacks, emergency patch released

ID: 38d3ae86-3ce6-5da8-a97a-158ae815029d

STIX ID: report--38d3ae86-3ce6-5da8-a97a-158ae815029d

Feed Name: Bleeping Computer

Threat Score
90/100

Date Published: 2026-04-05

Date Updated: 2026-04-20

Author: Lawrence Abrams

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Fortinet disclosed a critical, actively exploited FortiClient EMS vulnerability (CVE-2026-35616) — a pre-authentication API access bypass enabling unauthenticated code/command execution — and released emergency hotfixes for affected 7.4.5/7.4.6 installations while preparing a 7.4.7 release; security researchers reported in-the-wild exploitation and over 2,000 exposed EMS instances online.

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