FortiManager and FortiAnalyzer
CVE-2024-40590: Improper certificate validation in FortiPortal
An improper certificate validation vulnerability [CWE-295] in FortiPortal version 7.4.0, version 7.2.4 and below, version 7.0.8 and below, version 6.0.15 and below when connecting to a FortiManager device, a FortiAnalyzer device, or an SMTP server may allow an unauthenticated attacker in a Man-in-the-Middle position to intercept on and tamper with the encrypted communication channel established between the FortiPortal and those endpoints.
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 |
|---|---|
| FortiPortal 7.4 | 7.4.1 or later |
| FortiPortal 7.2.0 to 7.2.4 | 7.2.5 or later |
| FortiPortal 7.0.0 to 7.0.8 | 7.0.9 or later |
| FortiPortal 6.0.0 to 6.0.15 | Upgrade past 6.0.15; see the advisory |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
An improper certificate validation vulnerability [CWE-295] in FortiPortal version 7.4.0, version 7.2.4 and below, version 7.0.8 and below, version 6.0.15 and below when connecting to a FortiManager device, a FortiAnalyzer device, or an SMTP server may allow an unauthenticated attacker in a Man-in-the-Middle position to intercept on and tamper with the encrypted communication channel established between the FortiPortal and those endpoints.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 10 Oct 2026.