Improper Certificate Validation Vulnerability in Fortinet FortiClient
CVE-2024-54019

4.4MEDIUM

Key Information:

Vendor

Fortinet
Status
Forticlientwindows
Vendor
CVE Published:
10 June 2025

What is CVE-2024-54019?

An improper validation of certificates with host mismatches in Fortinet FortiClient enables unauthorized attackers to exploit VPN connections. This vulnerability allows for potential DNS spoofing or other forms of connection redirection. Affected versions include FortiClient Windows version 7.4.0 and earlier versions 7.2.0 to 7.2.6, along with all releases of version 7.0. Organizations using these versions should take immediate action to mitigate the risk of unauthorized VPN access.

Affected Version(s)

FortiClientWindows 7.4.0

FortiClientWindows 7.2.0 <= 7.2.6

FortiClientWindows 7.0.0 <= 7.0.14

References

https://fortiguard.fortinet.com/psirt/FG-IR-24-365

CVSS V3.1

Score:
4.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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