Missing authorization in FortiClientEMS - CVE-2026-35616

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Main Vulnerability Database Vulnerabilities #VU124861

Missing authorization in FortiClientEMS - CVE-2026-35616

Published: April 4, 2026


Vulnerability identifier: #VU124861
CSH Severity: Critical
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/U:Red
CVE-ID: CVE-2026-35616
CWE-ID: CWE-862
Exploitation vector: Remote access
Exploit availability: The vulnerability is being exploited in the wild
Vendor: Fortinet, Inc
Affected software:
FortiClientEMS

Detailed vulnerability description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to missing authorization checks. A remote non-authenticated attacker can send a specially crafted HTTP request to certain API endpoint and execute arbitrary commands on the system.

Note, the vulnerability is being actively exploited in the wild. 


How to mitigate CVE-2026-35616

It is recommended to upgrade FortiClientEMS toversion 7.4.7 when it becomes available.

As a temporary solution it is recommended to apply a hotfix following the instructions below:

https://docs.fortinet.com/document/forticlient/7.4.5/ems-release-notes/832484 - for FortiClientEMS 7.4.5

https://docs.fortinet.com/document/forticlient/7.4.6/ems-release-notes/832484 - for FortiClientEMS 7.4.6



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