Fortinet FortiClientEMS up to 7.2.10/7.2.14/7.4.1/7.4.5 certificate validation

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Fortinet FortiClientEMS up to 7.2.10/7.2.14/7.4.1/7.4.5. This impacts an unknown function. The manipulation leads to certificate validation. This vulnerability is referenced as CVE-2026-59836. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in Fortinet FortiClientEMS up to 7.2.10/7.2.14/7.4.1/7.4.5 and classified as problematic. This issue affects an unknown functionality. The manipulation with an unknown input leads to a certificate validation vulnerability. Using CWE to declare the problem leads to CWE-295. The product does not validate, or incorrectly validates, a certificate. Impacted is integrity. The summary by CVE is:

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>

The advisory is shared at fortiguard.fortinet.com. The identification of this vulnerability is CVE-2026-59836 since 07/07/2026. The exploitation is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/14/2026). MITRE ATT&CK project uses the attack technique T1587.003 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

• Fortinet

Name

• FortiClientEMS

Version

• 7.2.0
• 7.2.1
• 7.2.2
• 7.2.3
• 7.2.4
• 7.2.5
• 7.2.6
• 7.2.7
• 7.2.8
• 7.2.9
• 7.2.10
• 7.2.11
• 7.2.12
• 7.2.13
• 7.2.14
• 7.4.0
• 7.4.1
• 7.4.2
• 7.4.3
• 7.4.4
• 7.4.5

License

• commercial

Website

• Vendor: https://www.fortinet.com/

CPE 2.3info

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