CVE-2025-59718

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Entry Details

CVE-2025-59718

Confirmed

Yes

2026-01-27 00:00 UTC

Timestamps

2026-01-27

2026-01-27

Scope

Affected: Fortinet / FortiOS,FortiProxy,FortiSwitchManager | Description: A improper verification of cryptographic signature vulnerability in Fortinet FortiOS, FortiProxy, FortiSwitchManager allows an unauthenticated attacker to bypass the FortiCloud SSO login authentication via a crafted SAML response message. | Origin source: CERT-AT | Notes: https://www.cert.at/en/blog/2026/1/threat-actors-use-forticloud-to-collect-ldap-connection-passwords, https://www.cert.at/en/blog/2026/1/look-at-forticloud-sso-bypass-exploitation

References
  • {'id': 'CVE-2025-59718', 'url': 'https://www.cve.org/CVERecord?id=CVE-2025-59718'}
  • {'id': 'EUVD-2025-202198', 'url': 'https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-202198'}
  • {'id': 'source', 'url': 'https://www.cert.at/en/blog/2026/1/threat-actors-use-forticloud-to-collect-ldap-connection-passwords'}
  • {'id': 'source', 'url': 'https://www.cert.at/en/blog/2026/1/look-at-forticloud-sso-bypass-exploitation'}

d2727558-5359-4825-9e33-f7652f3c415e

cce329bf-df49-4c6e-a027-80be2e6483bd

2026-05-21 09:00 UTC

2026-05-21 09:00 UTC

Evidence (1)
Type Source Signal Confidence Details GCVE Metadata
csirt_report enisa-cnw-kev successful_exploitation 0.75
View details 
{
  "catalog": "ENISA / EU CSIRTs Network (CNW) KEV JSON",
  "cwes": "-",
  "dateReported": "2026/01/27",
  "euvd": "EUVD-2025-202198",
  "exploitationType": "-",
  "notes": "https://www.cert.at/en/blog/2026/1/threat-actors-use-forticloud-to-collect-ldap-connection-passwords, https://www.cert.at/en/blog/2026/1/look-at-forticloud-sso-bypass-exploitation",
  "originSource": "CERT-AT",
  "product": "FortiOS,FortiProxy,FortiSwitchManager",
  "threatActorsExploiting": "-",
  "vendorProject": "Fortinet",
  "vulnerabilityName": "-"
}
 -
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