CVE-2026-35616 Fortinet FortiClient EMS Improper Access Control

Exploited in the wild Critical 9.1 Published 4 Apr 2026 Updated 8 Jul 2026

Unauthenticated attackers can execute unauthorized code or commands on FortiClientEMS via crafted requests due to improper access control.

Exploited in the wild: Since 6 Apr 2026
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-35616?

CVE-2026-35616 is a critical authentication bypass vulnerability in Fortinet FortiClientEMS, published on 4 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-284

Which versions are affected by CVE-2026-35616?

It affects 1 product.

Products include Fortinet Forticlientems.

How do I fix CVE-2026-35616?

No fix has been published for CVE-2026-35616 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 9 Apr 2026.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2026-35616 being exploited?

Yes. Attackers have exploited CVE-2026-35616 in the wild since at least 6 Apr 2026.

Public exploit code: 1 Nuclei template and 8 proofs of concept on GitHub.

Sources

Also known as GHSA-gvcr-mc93-7p8p.