Multiple improper neutralization of special elements used in an OS command ('OS Command Injection') vulnerabilities [CWE-78] in Fortinet FortiIsolator version 2.4.0 through 2.4.5 allows an authenticated attacker with at least read-only admin permission and CLI access to execute unauthorized code via specifically crafted CLI commands.
Conclusion & alert: CVE-2024-55590 is rated Moderate Risk (56.4/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.04%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.59% | 1.04% | +0.45% |
| 2 | 2026-04-25 | 0.76% | 0.59% | -0.17% |
| 3 | 2026-04-23 | — | 0.76% | — |
Full EPSS history (16 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 8.8 | 3.1 | HIGH |
|
2.8 | 5.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| fortinet | fortiisolator | >= 2.4.0, < 2.4.6 | cpe:2.3:a:fortinet:fortiisolator:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://fortiguard.fortinet.com/psirt/FG-IR-24-178 | Vendor Advisory |