vulnerability
Fortinet FortiClient: CVE-2022-45856: FortiClient(All) - Lack of client-side certificate validation using SAML SSO
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 6 | (AV:N/AC:M/Au:N/C:P/I:P/A:N) | Sep 10, 2024 | Jun 25, 2025 | Mar 25, 2026 |
Severity
6
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:N)
Published
Sep 10, 2024
Added
Jun 25, 2025
Modified
Mar 25, 2026
Description
An improper certificate validation vulnerability [CWE-295] in FortiClientWindows, FortiClientMac, FortiClientLinux, FortiClientAndroid and FortiClientiOS SAML SSO feature may allow an unauthenticated attacker to man-in-the-middle the communication between the FortiClient and both the service provider and the identity provider.
Solution
fortinet-forticlient-upgrade-latest
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-45856
- https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2022-45856
- https://www.fortiguard.com/psirt/FG-IR-22-230
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2022-48709
- CVE-2022-45856
- https://attackerkb.com/topics/CVE-2022-45856
- CWE-295
- EUVD-EUVD-2022-48709
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