FortiOS
CVE-2024-52965: Missing critical step in authentication in FortiOS, FortiProxy
A missing critical step in authentication vulnerability [CWE-304] in Fortinet FortiOS version 7.6.0 through 7.6.1, 7.4.0 through 7.4.5, 7.2.0 through 7.2.10, and before 7.0.16 & FortiProxy version 7.6.0 through 7.6.1, 7.4.0 through 7.4.8, 7.2.0 through 7.2.13 and before 7.0.20 allows an API-user using api-key + PKI user certificate authentication to login even if the certificate is invalid.
Published
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| FortiOS 7.6.0 to 7.6.1 | 7.6.3 or later |
| FortiOS 7.4.0 to 7.4.5 | 7.4.6 or later |
| FortiOS 7.2.0 to 7.2.10 | 7.2.11 or later |
| FortiOS 7.0.1 to 7.0.16 | 7.0.17 or later |
| FortiProxy 7.6.0 to 7.6.1 | 7.6.2 or later |
| FortiProxy 7.4.0 to 7.4.8 | 7.4.9 or later |
| FortiProxy 7.2.0 to 7.2.13 | 7.2.14 or later |
| FortiProxy 7.0.0 to 7.0.20 | 7.0.21 or later |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
A missing critical step in authentication vulnerability [CWE-304] in Fortinet FortiOS version 7.6.0 through 7.6.1, 7.4.0 through 7.4.5, 7.2.0 through 7.2.10, and before 7.0.16 & FortiProxy version 7.6.0 through 7.6.1, 7.4.0 through 7.4.8, 7.2.0 through 7.2.13 and before 7.0.20 allows an API-user using api-key + PKI user certificate authentication to login even if the certificate is invalid.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 10 Oct 2026.