Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
Fortinet Multiple Products
AV AC PR UI S C I A CVSS EPSS %ile KEV
N L N N U H H H 9.1 .6344 99.1 YES
AFFECTED
Product Versions Fixed
FortiSwitchManager 7.2.0 – —
FortiOS 7.6.0 – —
FortiProxy 7.6.0 – —
TIMELINE
Sep 19 Reserved by fortinet
Dec 16 Added to CISA KEV, remediation due 2025-12-23
Dec 16 Published (CNA: fortinet)
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.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
| September 19, 2025 | Reserved | Reserved by fortinet |
| December 16, 2025 | KEV ADDED | Added to CISA KEV, remediation due 2025-12-23 |
| December 16, 2025 | Published | Published (CNA: fortinet) |
Affected
Affected products and packages — 3 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| Fortinet | FortiSwitchManager | — | 7.2.0 | — |
| Fortinet | FortiOS | — | 7.6.0 | — |
| Fortinet | FortiProxy | — | 7.6.0 | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2025-59718 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.