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Critical

Fortinet Multiple Products Improper Verification of Cryptographic Signature Vulnerability

Type: advisorySource: CISA Known Exploited VulnerabilitiesKnown exploited1 source record

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

Announced Source revision 1
Original source ↗

CVE-2025-59718

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: kev:CVE-2025-59718

Multiple Products

Source reference: /product

Affected versions
Not stated in this record
Fixed versions
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Prerequisites
Not stated in this record
Related CVEs
CVE-2025-59718

Source reference: /cveID

Publisher severity

No explicit severity was provided.

Linked CVE context

These ratings describe the referenced vulnerabilities and products. They are not a severity rating for every application using this dependency.

CVE-2025-59718 · Critical

FortiSwitchManager, FortiOS, FortiProxy

Event
#279 · Revision 1
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