CVE-2026-35616

Fortinet FortiClient EMS Improper Access Control Vulnerability

Fortinet FortiClient EMSNetwork & edge

CVSS

9.1Critical

ExploitationExploited in the wildAdded to KEV 6 Apr 2026CISA KEV

Exploit odds (EPSS)94.0%Chance of exploitation activity in the next 30 days, higher than 99% of CVEs. Scored 23 Oct 2026FIRST EPSS

Fixed inNone listedNo source names a fixed version. Check the vendor advisory below

Federal deadline9 Apr 2026Remediation due date for US federal agenciesCISA KEV

CISA required actionApply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. CISA KEV

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Timeline

4 Apr 2026, 00:38 UTCPublishedCVE List
6 Apr 2026Added to CISA KEVCISA KEV

Campaigns 1

ExploitedINC and The Gentlemen affiliates 23 Oct 2026SOCRadar The Hacker News

From published threat research, as each report states it.

Public exploit code and templates 1

Scanner templateFortiClient EMS - Authentication BypassNuclei

Listed so defenders can prioritize. Threatline links to the source and does not host exploit code.

Description

Fortinet FortiClient EMS contains an improper access control vulnerability that may allow an unauthenticated attacker to execute unauthorized code or commands via crafted requests.

Text from CVE List

Affected versions 1

FortiClientEMSaffected: 7.4.5 through 7.4.6CVE List