How severe is CVE-2024-23109?

CVE-2024-23109 has a CVSS 3.x base score of 10.0, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2024-23109 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-23109?

CVE-2024-23109 primarily affects Fortinet Fortisiem. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2024-23109?

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

Does CVE-2024-23109 have an EU (EUVD) identifier?

Yes. CVE-2024-23109 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-20634.

When was CVE-2024-23109 published?

CVE-2024-23109 was published on 2024-02-05 and last updated on 2026-06-17.

CVE-2024-23109

CVE-2024-23109 is a critical-severity vulnerability in Fortinet Fortisiem with a CVSS 3.x base score of 10.0. 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: Critical (CVSS 3.x base score 10.0)
EPSS exploit prediction: 3% (87th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-20634
Weakness: CWE-78
Affected product: Fortinet Fortisiem
Published: 2024-02-05
Last modified: 2026-06-17

Description

An improper neutralization of special elements used in an os command ('os command injection') vulnerability in Fortinet allows attacker to execute unauthorized code or commands via via crafted API requests.

Frequently asked questions

What is CVE-2024-23109?: An improper neutralization of special elements used in an os command ('os command injection') vulnerability in Fortinet allows attacker to execute unauthorized code or commands via via crafted API requests.
How severe is CVE-2024-23109?: CVE-2024-23109 has a CVSS 3.x base score of 10.0, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2024-23109 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-23109?: CVE-2024-23109 primarily affects Fortinet Fortisiem. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2024-23109?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2024-23109 have an EU (EUVD) identifier?: Yes. CVE-2024-23109 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-20634.
When was CVE-2024-23109 published?: CVE-2024-23109 was published on 2024-02-05 and last updated on 2026-06-17.

References

https://fortiguard.com/psirt/FG-IR-23-130

Affected products (3)

cpe:2.3:a:fortinet:fortisiem:*:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortisiem:7.1.0:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortisiem:7.1.1:*:*:*:*:*:*:*

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