Fortinet warns of critical FortiMail flaw exploited in zero-day attacks

T1Critical 100Covered by 1 source · first reported by BleepingComputer at 01 Oct, 22:42 UTC

Fortinet is warning customers of a critical FortiMail vulnerability, tracked as CVE-2026-104286, that is being actively exploited in zero-day attacks to execute unauthorized code or commands on vulnerable devices. [...]

security

Sources

• T1Fortinet warns of critical FortiMail flaw exploited in zero-day attacksBleepingComputer01 Oct, 22:42

Vulnerabilities

• CVE-2026-104286