Summary On January 27, 2026, Fortinet released an advisory detailing a critical authentication bypass vulnerability affecting FortiOS, FortiAnalyzer, FortiManager, and FortiProxy products. Designated CVE-2026-24858, the vulnerability allows an unauthenticated threat actor with a FortiCloud account and a registered device to log into other devices registered to other accounts, if FortiCloud SSO authentication is enabled on … CVE-2026-24858: FortiCloud SSO Authentication Bypass Vulnerability Exploited
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Article Link: CVE-2026-24858 | Arctic Wolf