CVE-2024-23663

Name: CVE-2024-23663
Creator: NVD / NIST
Published: 2024-07-09T16:15:04.593+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 0.64%

Last modified Jun 17, 2026

CVE-2024-23663 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. An improper access control in Fortinet FortiExtender 4.1.1 - 4.1.9, 4.2.0 - 4.2.6, 5.3.2, 7.0.0 - 7.0.4, 7.2.0 - 7.2.4 and 7.4.0 - 7.4.2 allows an attacker to create users with elevated privileges via a crafted HTTP request.. EPSS estimates a 0.64% chance of exploitation in the next 30 days.

Description

An improper access control in Fortinet FortiExtender 4.1.1 - 4.1.9, 4.2.0 - 4.2.6, 5.3.2, 7.0.0 - 7.0.4, 7.2.0 - 7.2.4 and 7.4.0 - 7.4.2 allows an attacker to create users with elevated privileges via a crafted HTTP request.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

0.64%

46.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-284

Affected Software

Vendor	Product	Versions
Fortinet	Fortiextender Firmware	>= 4.1.1, <= 4.1.9
Fortinet	Fortiextender Firmware	>= 4.2.0, <= 4.2.6
Fortinet	Fortiextender Firmware	>= 7.0.0, <= 7.0.4
Fortinet	Fortiextender Firmware	>= 7.2.0, <= 7.2.4
Fortinet	Fortiextender Firmware	>= 7.4.0, <= 7.4.2
Fortinet	Fortiextender Firmware	5.3.2

References

https://fortiguard.com/psirt/FG-IR-23-459Vendor Advisory
https://fortiguard.com/psirt/FG-IR-23-459Vendor Advisory

Timeline

Published: Jul 9, 2024
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2024-23663?

How severe is CVE-2024-23663?

CVE-2024-23663 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.64% probability of exploitation in the next 30 days.

How do I fix CVE-2024-23663?

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-2024-23663?

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

Scan your code now

Source: NVD / NIST