vulnerability
Fortinet sounds the alarm over actively exploited FortiMail zero-day
CriticalCVSS 9.8KEV
Summary
Fortinet has issued a warning about a critical, actively exploited zero-day vulnerability (CVE-2026-104286) in its FortiMail email security platform. Fortinet recommends immediate mitigation steps, including disabling Identity Based Encryption and restricting internet access to the management interface, while customers await updates.
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