CVE-2025-59718
Fortinet Multiple Products Improper Verification of Cryptographic Signature Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.
Required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA notes
https://fortiguard.fortinet.com/psirt/FG-IR-25-647 ; https://docs.fortinet.com/upgrade-tool/fortigate ; https://nvd.nist.gov/vuln/detail/CVE-2025-59718
Description
A improper verification of cryptographic signature vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2.0 through 7.2.11, FortiOS 7.0.0 through 7.0.17, FortiProxy 7.6.0 through 7.6.3, FortiProxy 7.4.0 through 7.4.10, FortiProxy 7.2.0 through 7.2.14, FortiProxy 7.0.0 through 7.0.21, FortiSwitchManager 7.2.0 through 7.2.6, FortiSwitchManager 7.0.0 through 7.0.5 allows an unauthenticated attacker to bypass the FortiCloud SSO login authentication via a crafted SAML response message.
Severity
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:CAffected Products
| Vendor | Product | Affected versions |
|---|---|---|
| Fortinet | FortiSwitchManager | 7.2.0 to 7.2.6 7.0.0 to 7.0.5 |
| Fortinet | FortiOS | 7.6.0 to 7.6.3 7.4.0 to 7.4.8 7.2.0 to 7.2.11 7.0.0 to 7.0.17 |
| Fortinet | FortiProxy | 7.6.0 to 7.6.3 7.4.0 to 7.4.10 7.2.0 to 7.2.14 7.0.0 to 7.0.21 |
References
1 LinksRecord Details
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