CVE-2026-59836 Security feature bypass in FortiClientEMS

Medium 6.7 Published 14 Jul 2026 Updated 15 Jul 2026

Improper certificate validation in FortiClient EMS allows attackers to disclose sensitive information.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2026-59836?

CVE-2026-59836 is a medium-severity vulnerability in Fortinet FortiClientEMS, published on 14 Jul 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

A improper certificate validation vulnerability in Fortinet FortiClientEMS 7.4.3 through 7.4.5, FortiClientEMS 7.4.0 through 7.4.1, FortiClientEMS 7.2 all versions may allow attacker to information disclosure via <insert attack vector here>

Weakness: CWE-295

Which versions are affected by CVE-2026-59836?

It affects 1 product.

Products include Fortinet Forticlientems.

How do I fix CVE-2026-59836?

No fix has been published for CVE-2026-59836 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-59836 being exploited?

There is no known exploitation of CVE-2026-59836 in the wild and no public exploit code.

Sources

Also known as GHSA-gp77-r46p-xfvc.