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Fortinet Reports Active Exploitation of CVE-2020-12812 Vulnerability

Fortinet Reports Active Exploitation of CVE-2020-12812 Vulnerability

First seen 29 Dec 2025, 16:17 UTC • •

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ThreatCluster AI
ThreatCluster •March 12, 2026 at 13:27 UTC

Fortinet has reported active attacks exploiting a five-year-old vulnerability in FortiOS, tracked as CVE-2020-12812. This flaw allows threat actors to bypass two-factor authentication, posing significant risks to affected systems. Organizations using FortiOS are urged to take immediate action to mitigate these vulnerabilities.

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