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Over 10K Fortinet firewalls exposed to actively exploited 2FA bypass

ID: a30ff62d-4a02-53a2-be87-91c0281eded3

STIX ID: report--a30ff62d-4a02-53a2-be87-91c0281eded3

Feed Name: Bleeping Computer

Threat Score
88/100

Date Published: 2026-01-02

Date Updated: 2026-04-20

Author: Sergiu Gatlan

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Over 10,000 Fortinet FortiGate firewalls remain unpatched and exposed to active exploitation of CVE-2020-12812, a critical (CVSS 9.8) SSL VPN authentication bypass that allows attackers to circumvent FortiToken 2FA by altering username case; Fortinet, Shadowserver, CISA and the FBI have observed abuse in the wild and linked Fortinet flaws to state-sponsored and ransomware activity.

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