Improper validation of certificate with host mismatch in Fortinet FortiClient for Windows - CVE-2024-54019

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Main Vulnerability Database Vulnerabilities #VU111049

Improper validation of certificate with host mismatch in Fortinet FortiClient for Windows - CVE-2024-54019

Published: June 11, 2025


Vulnerability identifier: #VU111049
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2024-54019
CWE-ID: CWE-297
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Fortinet, Inc
Affected software:
Fortinet FortiClient for Windows

Detailed vulnerability description

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

The vulnerability exists due to improper validation of certificate with host mismatch. An unauthorized attacker can redirect VPN connections via DNS spoofing or another form of redirection.


How to mitigate CVE-2024-54019

Install update from vendor's website.

Sources