A threat actor has been compromising Fortinet firewalls through single sign-on (SSO) logins over the past week, raising the specter that a previously disclosed and mitigated authentication bypass ...

Threat actors aren’t wasting time taking advantage of newly-revealed vulnerabilities in Fortinet device authentication. Researchers at Arctic Wolf said they are seeing malicious single sign on (SSO) ...

Fortinet has confirmed a new, actively exploited critical FortiCloud single sign-on (SSO) authentication bypass vulnerability, tracked as CVE-2026-24858, and says it has mitigated the zero-day attacks ...

Fortinet systems are under threat due to another authentication-based flaw, with security experts warning edge devices are now a vulnerable attack surface for networks. A single sign-on (SSO) ...