CybersecurityAlert level 4 of 5: Priority
FortiMail critical flaw exploited before a patch was available (CVE-2026-104286)
Fortinet warns of a FortiMail flaw rated 9.8/10 that was exploited before any patch existed. Fixed versions are now available on all maintained branches. Here are the affected branches, the workaround to apply and the indicators of compromise.
