FortiSIEMFortinet SIEM security information and event management1Articles499TopicsArticles with this TagSecurityCVE-2025-64155 in FortiSIEM enables unauthenticated RCE via phMonitor, forcing urgent upgradesCVE-2025-64155 is a critical Fortinet FortiSIEM vulnerability that allows unauthenticated remote att...Jan 15, 2026