CVE-2025-59719: exploitation status and patch state

CVE-2025-59719 · CVSS 9.8 CRITICAL · EPSS 25%

An improper verification of cryptographic signature vulnerability in Fortinet FortiWeb 8.0.0, FortiWeb 7.6.0 through 7.6.4, FortiWeb 7.4.0 through 7.4.9 may allow an unauthenticated attacker to bypass the FortiCloud SSO login authentication via a crafted SAML response message.

Is CVE-2025-59719 exploited?

• Not in the CISA KEV catalog.
• EPSS puts exploitation in the next 30 days at 25%.
• Public exploit code: none found in monitored sources.

Which products and versions are affected?

No affected package list recorded here yet.

Is there a patch?

No patch identifier recorded here yet.

What PlainSec published about CVE-2025-59719

• Patched FortiGates Still Leak Access Through Old Credentials (2026-07-09)
• FortiBleed Becomes a Credential-Resale Problem (2026-06-23)

Primary sources

• NVD record

What this record does not say

• No affected package data.
• No patch identifier.

KEV and EPSS are re-checked daily. Record last updated 2026-08-11.