CVE-2022-39953

Name: CVE-2022-39953
Creator: NVD / NIST
Published: 2023-03-07T17:15:11.943+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.21%

Last modified Jun 17, 2026

CVE-2022-39953 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. A improper privilege management in Fortinet FortiNAC version 9.4.0 through 9.4.1, FortiNAC version 9.2.0 through 9.2.6, FortiNAC version 9.1.0 through 9.1.8, FortiNAC all versions 8.8, FortiNAC all versions 8.7, FortiNAC all versions 8.6, FortiNAC all versions 8.5, FortiNAC version 8.3.7 allows attacker to escalation of privilege via specially crafted commands.. EPSS estimates a 0.21% chance of exploitation in the next 30 days.

Description

A improper privilege management in Fortinet FortiNAC version 9.4.0 through 9.4.1, FortiNAC version 9.2.0 through 9.2.6, FortiNAC version 9.1.0 through 9.1.8, FortiNAC all versions 8.8, FortiNAC all versions 8.7, FortiNAC all versions 8.6, FortiNAC all versions 8.5, FortiNAC version 8.3.7 allows attacker to escalation of privilege via specially crafted commands.

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

0.21%

10.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Fortinet	Fortinac	>= 8.5.0, <= 8.5.4
Fortinet	Fortinac	>= 8.6.0, <= 8.6.5
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	8.3.7
Fortinet	Fortinac	9.4.0
Fortinet	Fortinac	9.4.1

References

https://fortiguard.com/psirt/FG-IR-22-309Vendor Advisory
https://fortiguard.com/psirt/FG-IR-22-309Vendor Advisory

Timeline

Published: Mar 7, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-39953?

How severe is CVE-2022-39953?

CVE-2022-39953 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.21% probability of exploitation in the next 30 days.

How do I fix CVE-2022-39953?

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-2022-39953?

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

Scan your code now

Source: NVD / NIST