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Fortinet FortiGate Flaw Exploited by Cybercriminals

First seen 25 Dec 2025, 18:07 UTC • •

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ThreatCluster •March 12, 2026 at 13:27 UTC

Cybercriminals are exploiting a long-patched vulnerability in Fortinet FortiGate firewalls, allowing them to bypass two-factor authentication (2FA). This flaw, identified as FG-IR-19-283 (CVE-2020-12812), may grant unauthorized access to VPNs and admin consoles. Fortinet's PSIRT team has urged administrators to audit their configurations to prevent potential compromises.

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