Back to Database
Status published
Medium
CVE-2021-24012
An improper following of a certificate's chain of trust vulnerability...
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
THREAT MONITOR
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2021-24012
Credits & Attribution
No credits recorded in the NVD database.
References
More from Fortinet
View All →CVE-2025-68686
An Exposure of Sensitive Information to an Unauthorized Actor vulnerability...
Medium
5.3
CVE-2025-68649
An improper limitation of a pathname to a restricted directory...
Medium
5.4
CVE-2025-68648
A use of externally-controlled format string vulnerability in Fortinet FortiAnalyzer...
Medium
6.5
CVE-2025-68482
A improper certificate validation vulnerability in Fortinet FortiAnalyzer 7.6.0 through...
Medium
6.3
CVE-2025-67862
An Internal Asset Exposed to Unsafe Debug Access Level or...
Medium
6
Affected Vendor
Fortinet
View all reports →Affected Software
Fortinet FortiOS
Vulnerable Versions:
FortiOS 6.4.0 to 6.4.4
Timeline
Official Publish:
June 2nd, 2021
Last Modified:
October 25th, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.