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.
Published: 2020-07-25
Score: 7.5 High
EPSS: 45.4% Moderate
KEV: Yes
AI Analysis

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Remediation

No solution or workaround provided in the CVE record.

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Tracking

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Advisories

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History

Thu, 01 Oct 2026 23:30:00 +0200

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'active', 'Technical Impact': 'total'}, 'version': '2.0.3'}

cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'active', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 22 Oct 2025 02:15:00 +0200


Tue, 21 Oct 2025 22:30:00 +0200


Tue, 21 Oct 2025 21:30:00 +0200


Tue, 04 Feb 2025 21:15:00 +0100

Type Values Removed Values Added
Metrics kev

{'dateAdded': '2021-11-03'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'active', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Subscriptions

Fortinet Fortios
cve-icon MITRE

Status: PUBLISHED

Assigner: fortinet

Published:

Updated: 2026-10-01T20:30:43.171Z

Reserved: 2020-05-12T00:00:00.000Z

Link: CVE-2020-12812

cve-icon Vulnrichment

Updated: 2024-08-04T12:04:22.855Z

cve-icon NVD

Status : Analyzed

Published: 2020-07-24T23:15:12.003

Modified: 2026-10-02T14:54:53.040

Link: CVE-2020-12812

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses
  • CWE-178

    Improper Handling of Case Sensitivity

  • CWE-287

    Improper Authentication