What is CVE-2024-54021?

CVE-2024-54021 is a medium-severity vulnerability in Fortinet Fortios, classified under HTTP Response Splitting. CVSS score: 6.5/10. Published 2025-01-14.

How severe is CVE-2024-54021?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Fortinet Fortios

CVE-2024-54021

An Improper Neutralization of CRLF Sequences in HTTP Headers ('http response splitting') vulnerability [CWE-113] in Fortinet FortiOS 7.2.0 through 7.6.0, FortiProxy 7.2.0 through 7.4.5 may allow a remote unauthenticated attacker to bypass…

EPSS: 0.008 (50.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L.

Affected products

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

Weakness classification (CWE)

CWE-113 — HTTP Response Splitting

References

psirt@fortinet.com (Vendor Advisory)

Frequently asked questions

What is CVE-2024-54021?: CVE-2024-54021 is a medium-severity vulnerability in Fortinet Fortios, classified under HTTP Response Splitting. CVSS score: 6.5/10. Published 2025-01-14.
How severe is CVE-2024-54021?: Medium severity. CVSS v3 base score is 6.5 out of 10.