Fully patched FortiGate firewalls are getting compromised via CVE-2025-59718?
Vulnerabilities mentioned
All| CVE | Vulnerability | CVSS | EPSS | Signals | Published |
|---|---|---|---|---|---|
| CVE-2025-59718 | Critical FortiCloud SSO Authentication Bypass in Fortinet FortiOS and FortiProxy | 9.8 | 68% | KEV | KEV |
| CVE-2025-59719 | Unauthenticated SAML Signature Bypass in Fortinet FortiWeb (FortiCloud SSO) | 9.8 | 29% |
From the original article
5 min read at helpnetsecurity.com
CVE-2025-59718, a critical authentication bypass flaw that attackers exploited in December 2025 to compromise FortiGate appliances, appears to persist in newer, purportedly fixed releases of the underlying FortiOS. According to Fortinet , CVE-2025-59718 had been fixed in FortiOS versions 7. 6.
By @zeljkazorz · helpnetsecurity.com
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