What is CVE-2024-55599?

CVE-2024-55599 is a medium-severity vulnerability in Fortinet Fortios, classified under CWE-358. CVSS score: 5.3/10. Published 2025-07-08.

How severe is CVE-2024-55599?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Fortinet Fortios

CVE-2024-55599

An Improperly Implemented Security Check for Standard vulnerability [CWE-358] in FortiOS version 7.6.0, version 7.4.7 and below, 7.0 all versions, 6.4 all versions and FortiProxy version 7.6.1 and below, version 7.4.8 and below, 7.2 all versions, 7.0 all versions may allow a remote unauthenticated user to bypass the DNS filter via Apple devices.

EPSS: 0.003 (26.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

Affected products

Fortinet Fortios — versions 7.6.0, 7.4.0, 7.2.0
Fortinet Fortiproxy — versions 7.6.0, 7.4.0, 7.2.0
Fortinet Fortisase — versions 24.4.32

Weakness classification (CWE)

CWE-358

References

https://fortiguard.fortinet.com/psirt/FG-IR-24-053 (Vendor Advisory)
0b142b55-0307-4c5a-b3c9-f314f3fb7c5e

Frequently asked questions

What is CVE-2024-55599?: CVE-2024-55599 is a medium-severity vulnerability in Fortinet Fortios, classified under CWE-358. CVSS score: 5.3/10. Published 2025-07-08.
How severe is CVE-2024-55599?: Medium severity. CVSS v3 base score is 5.3 out of 10.