What’s Vulnerable › Vulnerabilities
CVE-2021-24012
- Severity: high (CVSS 7.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.5% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2021-06-02 · updated 2026-06-17
- Weakness: CWE-295
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 (FortiGate): from 6.4.0 before 6.4.5 — fixed in 6.4.5
How to fix
Upgrade to a fixed version: Fortinet FortiOS (FortiGate) 6.4.5. Check the vendor advisory for mitigations.
References
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