All vulnerabilities
CVE-2020-12812

Fortinet FortiOS SSL VPN Improper Authentication Vulnerability

Fortinet FortiOSNetwork & edge
Open in ThreatlineRecord JSON
CVSS
7.5High
ExploitationExploited in the wildAdded to KEV 3 Nov 2021. Known ransomware useCISA KEV
Exploit odds (EPSS)45.4%Chance of exploitation activity in the next 30 days, higher than 98% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Federal deadline3 May 2022Remediation due date for US federal agenciesCISA KEV
CISA required actionApply updates per vendor instructions. CISA KEV

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Timeline

  1. 24 Jul 2020, 22:28 UTCPublishedCVE List
  2. 3 Nov 2021Added to CISA KEVCISA KEV

Description

Fortinet FortiOS SSL VPN contains an improper authentication vulnerability that may allow a user to login successfully without being prompted for the second factor of authentication (FortiToken) if they change the case in their username.

Text from CVE List

Affected versions 1

  • Fortinet FortiOSaffected: FortiOS 6.4.0, 6.2.0 to 6.2.3, 6.0.9 and belowCVE List

References 3