Medium severity6.5NVD Advisory· Published Jun 2, 2021· Updated Jun 17, 2026

CVE-2021-24012

Description

An improper following of a certificate's chain of trust vulnerability in FortiGate versions 6.4.0 to 6.4.4 may allow an LDAP user to connect to SSLVPN with any certificate that is signed by a trusted Certificate Authority.

Affected products

Fortinet/Fortios
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*
Range: >=6.4.0,<6.4.5
Fortinet/Fortigatellm-fuzzy
Range: 6.4.0 to 6.4.4
Fortinet/Fortinetcpe-rescue
Range: FortiOS 6.4.0 to 6.4.4

Patches

Vulnerability mechanics

References

fortiguard.com/advisory/FG-IR-21-018nvdVendor Advisory

News mentions

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