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Fortinet Multiple Products Authentication Bypass Using an Alternate Path or Channel Vulnerability

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  • NewsExploited · CISA KEVFortinet · Multiple Products

    Fortinet Multiple Products Authentication Bypass Using an Alternate Path or Channel Vulnerability

    CVE-2026-24858

    Fortinet FortiAnalyzer, FortiManager, FortiOS, and FortiProxy contain an authentication bypass using an alternate path or channel that could allow an attacker with a FortiCloud account and a registered device to log into other devices registered to other accounts, if FortiCloud SSO authentication is enabled on those devices.

    CISA's required action · due for U.S. federal civilian agencies
    Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

    Cited by CISA: fortiguard.fortinet.com · fortinet.com · nvd.nist.gov

    Added to KEV · Source checked · CISA KEV entry

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