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CVE-2020-12812
CRITICAL · CVSS 9.8 ⚠ KEV — EXPLOITED
EPSS exploitation probability: 99%
⚠ Listed in the CISA Known Exploited Vulnerabilities catalog — actively exploited.
Published 2021-11-03 · Last modified 2026-08-12T05:17:29.187

Summary

An improper authentication vulnerability in SSL VPN in FortiOS 6.4.0, 6.2.0 to 6.2.3, 6.0.9 and below may result in a user being able to log in successfully without being prompted for the second factor of authentication (FortiToken) if they changed the case of their username.

Affected products

Fortinet — FortiOS

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.