🔴 Critical: Fortinet warns of critical FortiMail flaw exploited in zero-day attacks
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Fortinet has issued a warning about a critical vulnerability in FortiMail, tracked as CVE-2026-104286, which is being actively exploited in zero-day attacks. The flaw allows attackers to execute unauthorized code or commands on vulnerable devices.
At this time, the specific affected versions and mitigation steps have not been detailed in the available information. Administrators running FortiMail are urged to monitor Fortinet's official advisories for updates and patches.
- Vulnerability: CVE-2026-104286
- Impact: Unauthorized code or command execution
- Status: Actively exploited in zero-day attacks
- Affected product: FortiMail
Given the active exploitation, organizations should prioritize checking their FortiMail deployments and apply any available patches or mitigations as soon as they are released.
Source: Unknown
Is your organization running FortiMail, and if so, what steps are you taking to address this active threat?
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