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Vulnerability record · CVE-2023-33299 · published 23 June 2023

CVE-2023-33299: Fortinet fortinac deserialization of untrusted data vulnerability

Fortinet · Fortinac

A deserialization of untrusted data in Fortinet FortiNAC below 7.2.1, below 9.4.3, below 9.2.8 and all earlier versions of 8.x allows attacker to execute unauthorized code or commands via specifically crafted request on inter-server communication port. Note FortiNAC versions 8.x will not be fixed.

9.8 CVSS 3.1 Critical EPSS 24% · top 2.2% CWE-502 · Deserialization of untrusted data
9.8CVSS 3.1 base score
24%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

A deserialization of untrusted data in Fortinet FortiNAC below 7.2.1, below 9.4.3, below 9.2.8 and all earlier versions of 8.x allows attacker to execute unauthorized code or commands via specifically crafted request on inter-server communication port. Note FortiNAC versions 8.x will not be fixed.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://fortiguard.com/psirt/FG-IR-23-074 Vendor Advisory
https://fortiguard.com/psirt/FG-IR-23-074 Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2023-33299), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.