CVE-2026-35616

Fortinet FortiClient EMS Improper Access Control Vulnerability

  • Critical 9.1
  • Exploited: added to CISA KEV 6 Apr 2026

Description

A improper access control vulnerability in Fortinet FortiClientEMS 7.4.5 through 7.4.6 may allow an unauthenticated attacker to execute unauthorized code or commands via crafted requests.

Key facts

Published
4 Apr 2026
Last changed
8 Jul 2026
Assigned by
fortinet
KEV added
6 Apr 2026
KEV fix due
9 Apr 2026
EPSS
93.983% likely to be exploited in the next 30 days, higher than 99.849% of CVEs (scores for 15 Nov 2026)
SSVC (CISA)
Exploitation: active; Automatable: yes; Technical impact: total

Severity scores

Each score is shown as its source gave it. They are not averaged or merged.

  • 9.1CVSS 3.1, Criticalfrom the CNA (fortinet)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C

What to do

  • Upgrade to upcoming FortiClientEMS version 8.0.0 or above Upgrade to FortiClientEMS version 7.4.7 or aboveCNA solution statement
  • Apply 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 required action

Historical context and remediation

This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.

No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.

Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.

Read the original CVE record.

Affected products

VendorProductVersions
FortinetFortiClientEMS
  • Default status: unaffected
  • 7.4.5 up to and including 7.4.6 (affected)

Timeline

  1. 4 Apr 2026 Published
  2. 6 Apr 2026 CVE-2026-35616 added to CISA KEV
  3. 6 Apr 2026 Added to the CISA KEV catalogue

Weakness

References