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Fortinet warns of critical FortiMail flaw exploited in zero-day attacks
First reported Source: BleepingComputerLast editorial activity
AI illustrationWhat happened
Fortinet is warning customers of a critical FortiMail vulnerability, tracked as CVE-2026-104286 (the public catalogue number for a specific software flaw), that is being actively exploited in zero-day (a flaw already being used in attacks before a fix exists) attacks to execute unauthorized code or commands on vulnerable devices.
Sources & evidence
- BleepingComputer Reporting source
Fortinet warns of critical FortiMail flaw exploited in zero-day attacks ↗
https://www.bleepingcomputer.com/news/security/fortinet-warns-of-critical-fortimail-flaw-exploited-in-zero-day-attacks/