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Vulnerability record · CVE-2026-59836 · published 14 July 2026

CVE-2026-59836: Fortinet forticlientems improper certificate validation vulnerability

Fortinet · Forticlientems

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>

9.8 CVSS 3.1 Critical EPSS 0.22% · top 88.6% CWE-295 · Improper certificate validation
9.8CVSS 3.1 base score
0.22%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
15 Jul 2026Last modified by NVD

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>

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://fortiguard.fortinet.com/psirt/FG-IR-26-147 Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2026-35616FortiClientEMS improper access control allows unauthenticated code executionFortinet FortiClientEMS 7.4.5 through 7.4.6 contains an improper access control flaw (CWE-284) that lets an unauthenticated attacker send crafted req…KEVEPSS 9.1%analysed9.8CVE-2026-21643FortiClientEMS SQL injection allows unauthenticated remote code executionFortiClientEMS 7.4.4 fails to neutralize special elements in SQL commands, exposing a SQL injection reachable through crafted HTTP requests. Because …KEVEPSS 94%analysed9.8CVE-2024-23106Fortinet forticlientems improper restriction of authentication attempts vulnerabilityAn improper restriction of excessive authentication attempts [CWE-307] in FortiClientEMS version 7.2.0 through 7.2.4 and before 7.0.10 allows an unau…EPSS 0.96%7.2CVE-2025-59922Fortinet forticlientems sql injection vulnerabilityAn improper neutralization of special elements used in an SQL command ('SQL Injection') vulnerability [CWE-89] vulnerability in Fortinet FortiClientE…EPSS 7.8%6.7CVE-2026-39809Fortinet forticlientems sql injection vulnerabilityA improper neutralization of special elements used in an sql command ('sql injection') vulnerability in Fortinet FortiClientEMS 7.4.0 through 7.4.5, …EPSS 0.20%6.1CVE-2019-16149Fortinet forticlientems cross-site scripting vulnerabilityAn Improper Neutralization of Input During Web Page Generation in FortiClientEMS version 6.2.0 may allow a remote attacker to execute unauthorized co…EPSS 0.28%5.5CVE-2026-39810Fortinet forticlientems vulnerabilityA use of hard-coded cryptographic key vulnerability in Fortinet FortiClientEMS 7.4.0 through 7.4.5 may allow attacker to information disclosure via d…EPSS 0.15%5.3CVE-2025-22859Fortinet forticlientems relative path traversal vulnerabilityA Relative Path Traversal vulnerability [CWE-23] in FortiClientEMS 7.4.0 through 7.4.1 and FortiClientEMS Cloud 7.4.0 through 7.4.1 may allow a remot…EPSS 0.58%

Source: NIST National Vulnerability Database (record CVE-2026-59836), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.