CVE-2020-12812

State: Published
Severity: 7.5 High
Published: Jul 24, 2020
Updated: Oct 1, 2026
Reserved: May 12, 2020

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N	CISA-ADP

Weaknesses

CWE-287 Improper Authentication

Affected Products

Product	Versions
Fortinet FortiOSn/a	FortiOS 6.4.0, 6.2.0 to 6.2.3, 6.0.9 and belowAffected

References

https://fortiguard.com/psirt/FG-IR-19-283
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-12812government-resource

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