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CRITICAL: THIS VULNERABILITY IS ACTIVELY BEING EXPLOITED IN THE WILD (CISA KEV CATALOG)
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CVE-2025-59718

Exploited

FortiOS - FortiCloud SSO

Fortinet CVSS 9.8 Updated March 16, 2026

Executive Risk Summary

"A vulnerability in Fortinet FortiOS and FortiProxy allows an unauthenticated attacker to bypass the FortiCloud SSO login authentication via a crafted SAML response message, potentially leading to unauthorized access to sensitive resources. This vulnerability affects multiple versions of FortiOS and FortiProxy, and exploitation has been observed in the wild."

Operational Audit Arsenal

Target Type Firmware Image
Target Asset FortiOS
Standard Path Global Firmware

Manual Verification Required

This is a non-Windows asset (Fortinet). Use the target asset details above to verify your version against vendor advisories.

Patch Impact Forecast

Reboot Required Likely

Network connectivity may be interrupted during the update process

Internal Work Notes

CVE-2025-59718: FortiOS and FortiProxy vulnerability allowing bypass of FortiCloud SSO login authentication, requiring immediate patching to prevent unauthorized access

Technical Intelligence & Operational Utilities • Delivered Weekly

Intelligence Sources

Scope of Impact

Fortinet FortiswitchmanagerFortinet FortiproxyFortinet Fortios

Original NVD 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."

Related Fortinet Threats

Data compiled from NVD, MSRC, and CISA KEV Catalog. Intelligence synthesized via AI. Scripts provided for diagnostic purposes under MIT License.