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CVE-2021-32592

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-12-01 · updated 2026-06-17
• Weakness: CWE-427

Description

An unsafe search path vulnerability in FortiClientWindows 7.0.0, 6.4.6 and below, 6.2.x, 6.0.x and FortiClientEMS 7.0.0, 6.4.6 and below, 6.2.x, 6.0.x may allow an attacker to perform a DLL Hijack attack on affected devices via a malicious OpenSSL engine library in the search path.

Affected products

• Fortinet FortiClientWindows: from 6.0.0 through 6.0.9; from 6.2.0 through 6.2.9; from 6.4.0 before 6.4.7; 7.0.0 — fixed in 6.4.7
• Fortinet Forticlient Enterprise Management Server: from 6.0.0 through 6.0.6; from 6.2.0 through 6.2.9; from 6.4.0 before 6.4.7; 7.0.0 — fixed in 6.4.7

How to fix

Upgrade to a fixed version: Fortinet FortiClientWindows 6.4.7; Fortinet Forticlient Enterprise Management Server 6.4.7. Check the vendor advisory for mitigations.

References

• https://fortiguard.com/advisory/FG-IR-21-088
• https://fortiguard.com/advisory/FG-IR-21-088

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