How severe is CVE-2024-55590?

CVE-2024-55590 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2024-55590 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-55590?

CVE-2024-55590 affects Fortinet Fortiisolator. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-55590?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2024-55590 have an EU (EUVD) identifier?

Yes. CVE-2024-55590 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-54265.

When was CVE-2024-55590 published?

CVE-2024-55590 was published on 2025-03-11 and last updated on 2026-06-17.

CVE-2024-55590

CVE-2024-55590 is a high-severity vulnerability in Fortinet Fortiisolator with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 1% (62nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-54265
Weakness: CWE-78
Affected product: Fortinet Fortiisolator
Published: 2025-03-11
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2024-55590?: 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.
How severe is CVE-2024-55590?: CVE-2024-55590 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2024-55590 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-55590?: CVE-2024-55590 affects Fortinet Fortiisolator. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-55590?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2024-55590 have an EU (EUVD) identifier?: Yes. CVE-2024-55590 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-54265.
When was CVE-2024-55590 published?: CVE-2024-55590 was published on 2025-03-11 and last updated on 2026-06-17.

References

https://fortiguard.fortinet.com/psirt/FG-IR-24-178

Affected products (1)

cpe:2.3:a:fortinet:fortiisolator:*:*:*:*:*:*:*:*

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