CVE-2026-39809 SQL injection in FortiClientEMS

Medium 6.2 Published 14 Apr 2026 Updated 15 Apr 2026

An attacker can execute unauthorized code or commands by sending crafted requests to FortiClient EMS due to SQL injection.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-39809?

CVE-2026-39809 is a medium-severity SQL injection vulnerability in Fortinet FortiClientEMS, published on 14 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A improper neutralization of special elements used in an sql command ('sql injection') vulnerability in Fortinet FortiClientEMS 7.4.0 through 7.4.5, FortiClientEMS 7.2.0 through 7.2.12, FortiClientEMS 7.0 all versions may allow attacker to execute unauthorized code or commands via sending crafted requests

Weakness: CWE-89

Which versions are affected by CVE-2026-39809?

It affects 1 product.

Products include Fortinet Forticlientems.

How do I fix CVE-2026-39809?

No fix has been published for CVE-2026-39809 yet. Limit exposure of the affected software until one is available.

Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.

Is CVE-2026-39809 being exploited?

There is no known exploitation of CVE-2026-39809 in the wild and no public exploit code.

Sources

Also known as GHSA-g2q7-p5pr-qxqg.