CVE-2026-59836: Critical severity Fortinet FortiClientEMS vulnerability

Published Jul 14, 2026
·
Updated

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>

Affected Software

3 affected components
Fortinet FortiClientEMS>=7.4.3<=7.4.5, >=7.4.0<=7.4.1, =7.2
Fortinet FortiClientEMS>=7.2.0<=7.4.1
Fortinet FortiClientEMS>=7.4.3<7.4.6

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Fortinet FortiClientEMS to a version that resolves this vulnerability.

    Fixed in 7.4.6
  2. Upgrade

    Upgrade Fortinet FortiClientEMS to a version that resolves this vulnerability.

    Fixed in 8.0.0

Event History

Jul 14, 2026
CVE Published
via MITRE·03:15 PM
Data Sourced
via MITRE·03:15 PM
RemedyDescriptionSeverityWeakness
Data Sourced
via NVD·04:17 PM
DescriptionSeverityWeaknessAffected Software
Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is the severity of CVE-2026-59836?

The severity of CVE-2026-59836 is rated as medium with a score of 6.7.

2

How do I fix CVE-2026-59836?

To fix CVE-2026-59836, users should upgrade to FortiClientEMS version 7.4.6 or later.

3

What type of impact can CVE-2026-59836 have on my system?

CVE-2026-59836 can lead to information disclosure due to improper certificate validation.

4

Which versions of FortiClientEMS are affected by CVE-2026-59836?

FortiClientEMS versions 7.4.3 through 7.4.5, 7.4.0 through 7.4.1, and all versions of 7.2 are affected by CVE-2026-59836.

5

What is the attack vector for CVE-2026-59836?

The specific attack vector for CVE-2026-59836 has not been disclosed, but it involves improper certificate validation.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203