Fortinet FortiClient EMS Improper Access Control Vulnerability

Added to KEV
2026-04-06
Federal due date
2026-04-09
Vendor
Fortinet
Product
FortiClient EMS
EPSS
97.1th percentile (score 0.348, as of 2026-06-08)
NVD CVSS v3.1
Ransomware use
Unknown
Upstream
https://nvd.nist.gov/vuln/detail/CVE-2026-35616

CISA short 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.

Required action

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

EPSS percentile is the FIRST.org exploit-probability ranking as of the date noted above; it moves daily. CVSS reflects NVD's analysis at time of publication.