How severe is CVE-2024-23666?

CVE-2024-23666 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2024-23666 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-23666?

CVE-2024-23666 primarily affects Fortinet Fortianalyzer. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2024-23666?

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-2024-23666 have an EU (EUVD) identifier?

Yes. CVE-2024-23666 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-21139.

When was CVE-2024-23666 published?

CVE-2024-23666 was published on 2024-11-12 and last updated on 2026-06-17.

CVE-2024-23666

CVE-2024-23666 is a high-severity vulnerability in Fortinet Fortianalyzer with a CVSS 3.x base score of 7.5. 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-602.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-21139
Weakness: CWE-602
Affected product: Fortinet Fortianalyzer
Published: 2024-11-12
Last modified: 2026-06-17

Description

A client-side enforcement of server-side security in Fortinet FortiAnalyzer-BigData at least version 7.4.0 and 7.2.0 through 7.2.6 and 7.0.1 through 7.0.6 and 6.4.5 through 6.4.7 and 6.2.5, FortiManager version 7.4.0 through 7.4.1 and 7.2.0 through 7.2.4 and 7.0.0 through 7.0.11 and 6.4.0 through 6.4.14, FortiAnalyzer version 7.4.0 through 7.4.1 and 7.2.0 through 7.2.4 and 7.0.0 through 7.0.11 and 6.4.0 through 6.4.14 allows attacker to improper access control via crafted requests.

Frequently asked questions

What is CVE-2024-23666?: A client-side enforcement of server-side security in Fortinet FortiAnalyzer-BigData at least version 7.4.0 and 7.2.0 through 7.2.6 and 7.0.1 through 7.0.6 and 6.4.5 through 6.4.7 and 6.2.5, FortiManager version 7.4.0 through 7.4.1 and 7.2.0 through 7.2.4 and 7.0.0 through 7.0.11 and 6.4.0 through 6.4.14, FortiAnalyzer version 7.4.0 through 7.4.1 and 7.2.0 through 7.2.4 and 7.0.0 through 7.0.11 and 6.4.0 through 6.4.14 allows attacker to improper access control via crafted requests.
How severe is CVE-2024-23666?: CVE-2024-23666 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2024-23666 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-23666?: CVE-2024-23666 primarily affects Fortinet Fortianalyzer. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2024-23666?: 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-2024-23666 have an EU (EUVD) identifier?: Yes. CVE-2024-23666 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-21139.
When was CVE-2024-23666 published?: CVE-2024-23666 was published on 2024-11-12 and last updated on 2026-06-17.

References

https://fortiguard.fortinet.com/psirt/FG-IR-23-396

Affected products (4)

cpe:2.3:a:fortinet:fortianalyzer:*:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortianalyzer_big_data:*:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortianalyzer_big_data:7.4.0:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimanager:*:*:*:*:*:*:*:*

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