The mail gateway is already being exploited. The patch is still upcoming.
Zaheer Ikbal, Founder, CyHelm I would not sit on this one waiting for a patch note. Fortinet published FG-IR-26-175 on 1 October. CVE-2026-104286. Someone who is not logged in can write files onto the FortiMail system through the GUI, over HTTP or HTTPS. They describe it as path traversal plus a null byte, score it
The mail gateway is already being exploited. The patch is still upcoming. Read More »



