What is CVE-2024-23109?

CVE-2024-23109 is a critical-severity vulnerability in Fortinet Fortisiem, classified under OS Command Injection. CVSS score: 10.0/10. Published 2024-02-05.

How severe is CVE-2024-23109?

Critical severity. CVSS v3 base score is 10.0 out of 10.

Is CVE-2024-23109 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

RCE in Fortinet Fortisiem

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.

Vulnerability class: Command Injection (OS Command Injection)

Published 2024-02-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.032 (87.8th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 88th percentile — 87.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.032 · newest: 0.032 · change: 0.000

Affected products

Fortinet Fortisiem — versions 6.4.0, 7.1.0, 6.5.0

Weakness classification (CWE)

CWE-78 — OS Command Injection

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

fortiguard.com/psirt/FG-IR-23-130 (Vendor Advisory)

Frequently asked questions

What is CVE-2024-23109?: CVE-2024-23109 is a critical-severity vulnerability in Fortinet Fortisiem, classified under OS Command Injection. CVSS score: 10.0/10. Published 2024-02-05.
How severe is CVE-2024-23109?: Critical severity. CVSS v3 base score is 10.0 out of 10.
Is CVE-2024-23109 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.