Vulnerability in Fortinet Fortiportal
CVE-2024-40590
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.
Vulnerability class: Improper Certificate Validation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.002 (4.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 5th percentile — 4.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000
Affected products
- Fortinet Fortiportal — versions 7.4.0, 7.2.0, 7.0.0
Weakness classification (CWE)
References
- fortiguard.fortinet.com/psirt/FG-IR-22-155 (Vendor Advisory)
Frequently asked questions
- What is CVE-2024-40590?
- CVE-2024-40590 is a medium-severity vulnerability in Fortinet Fortiportal, classified under Improper Certificate Validation. CVSS score: 4.8/10. Published 2025-03-14.
- How severe is CVE-2024-40590?
- Medium severity. CVSS v3 base score is 4.8 out of 10.