CVE-2023-22633

Name: CVE-2023-22633
Creator: NVD / NIST
Published: 2023-06-13T09:15:16.127+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.65%

Last modified Jun 17, 2026

CVE-2023-22633 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 0.65% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

0.65%

46.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-264

Affected Software

Vendor	Product	Versions
Fortinet	Fortinac	>= 8.7.0, <= 8.7.6
Fortinet	Fortinac	>= 8.8.0, <= 8.8.11
Fortinet	Fortinac	>= 9.1.0, <= 9.1.8
Fortinet	Fortinac	>= 9.2.0, <= 9.2.6
Fortinet	Fortinac	9.4.0
Fortinet	Fortinac	9.4.1
Fortinet	Fortinac-F	7.2.0

References

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

Timeline

Published: Jun 13, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-22633?

How severe is CVE-2023-22633?

CVE-2023-22633 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.65% probability of exploitation in the next 30 days.

How do I fix CVE-2023-22633?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-22633?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST