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Vulnerability record · CVE-2023-22633 · published 13 June 2023

CVE-2023-22633: Fortinet fortinac permissions and access controls vulnerability

Fortinet · Fortinac

An improper permissions, privileges, and access controls vulnerability [CWE-264] in FortiNAC-F 7.2.0, FortiNAC 9.4.1 and below, 9.2.6 and below, 9.1.8 and below, 8.8.0 all versions 8.7.0 all versions may allow an unauthenticated attacker to perform a DoS attack on the device via client-secure renegotiation.

7.5 CVSS 3.1 High EPSS 0.65% · top 49.7% CWE-264 · Permissions and access controls
7.5CVSS 3.1 base score
0.65%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

An improper permissions, privileges, and access controls vulnerability [CWE-264] in FortiNAC-F 7.2.0, FortiNAC 9.4.1 and below, 9.2.6 and below, 9.1.8 and below, 8.8.0 all versions 8.7.0 all versions may allow an unauthenticated attacker to perform a DoS attack on the device via client-secure renegotiation.

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

Affected products

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

References

LinkTags
https://fortiguard.com/psirt/FG-IR-22-521 Vendor Advisory
https://fortiguard.com/psirt/FG-IR-22-521 Vendor Advisory

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Related vulnerabilities

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

9.8CVE-2026-24858Fortinet FortiCloud SSO authentication bypass across registered devicesA CWE-288 authentication bypass in Fortinet FortiAnalyzer, FortiManager, FortiNAC-F, FortiOS, FortiProxy and FortiWeb lets an attacker with a FortiCl…KEVEPSS 86%analysed9.8CVE-2023-33299Fortinet fortinac deserialization of untrusted data vulnerabilityA 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 exe…EPSS 24%9.8CVE-2022-39952Fortinet FortiNAC unauthenticated path control leads to code executionFortiNAC versions across the 8.x, 9.1, 9.2 and 9.4 lines mishandle externally controlled file names or paths, allowing an unauthenticated attacker to…EPSS 100%analysed9.8CVE-2022-38375Fortinet fortinac improper authorization vulnerabilityAn improper authorization vulnerability [CWE-285]  in Fortinet FortiNAC version 9.4.0 through 9.4.1 and before 9.2.6 allows an unauthenticated user t…EPSS 1.1%9.1CVE-2022-39954Fortinet fortinac xml external entity (xxe) vulnerabilityAn improper restriction of xml external entity reference in Fortinet FortiNAC version 9.4.0 through 9.4.1, FortiNAC version 9.2.0 through 9.2.7, Fort…EPSS 0.55%9.0CVE-2024-31488Fortinet fortinac cross-site scripting vulnerabilityAn improper neutralization of inputs during web page generation vulnerability [CWE-79] in FortiNAC version 9.4.0 through 9.4.4, 9.2.0 through 9.2.8, …EPSS 1.0%9.0CVE-2023-22637Fortinet fortinac cross-site scripting vulnerabilityAn improper neutralization of input during web page generation ('Cross-site Scripting') vulnerability [CWE-79] in FortiNAC-F version 7.2.0, FortiNAC …EPSS 0.61%8.8CVE-2022-40677Fortinet fortinac argument injection vulnerabilityA improper neutralization of argument delimiters in a command ('argument injection') in Fortinet FortiNAC versions 9.4.0, 9.2.0 through 9.2.5, 9.1.0 …EPSS 0.77%

Source: NIST National Vulnerability Database (record CVE-2023-22633), CISA KEV, FIRST EPSS (scores of 2026-10-17). This page is refreshed as NVD updates the record.