CVE Watch—

CVE-2025-59718

Fortinet Multiple Products Improper Verification of Cryptographic Signature Vulnerability

CVSS

—

Sem CVSS

EPSS

68.3%

p99

KEV

SIM

16 de dez. de 2025

Exploit Today

0-100

Publicado: — · Última mod.: —

EPSS · 30d

68.3%EPSS · 30 dias68.3%

2026-10-082026-11-05

Ficha do catálogo KEV

Produto

Fortinet / Multiple Products

Vulnerabilidade

Fortinet Multiple Products Improper Verification of Cryptographic Signature Vulnerability

Adicionado ao KEV

16 de dez. de 2025

Corrigir até

23 de dez. de 2025

Uso conhecido em ransomware

Não

Descrição resumida

Fortinet FortiOS, FortiSwitchMaster, FortiProxy, and FortiWeb contain an improper verification of cryptographic signature vulnerability that may allow an unauthenticated attacker to bypass the FortiCloud SSO login authentication via a crafted SAML message. Please be aware that CVE-2025-59719 pertains to the same problem and is mentioned in the same vendor advisory. Ensure to apply all patches mentioned in the advisory.

Ação necessária

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Notas

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

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