What’s Vulnerable › Vulnerabilities
CVE-2024-54021
- Severity: medium (CVSS 5.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.8% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2025-01-14 · updated 2026-06-17
- Weakness: CWE-113
Description
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 the file filter via crafted HTTP headers.
Affected products
- Fortinet FortiOS (FortiGate): from 7.2.0 before 7.2.9; from 7.4.0 before 7.4.5; 7.6.0 — fixed in 7.2.9, 7.4.5
- Fortinet FortiProxy: from 7.2.0 before 7.2.12; from 7.4.0 before 7.4.6 — fixed in 7.2.12, 7.4.6
How to fix
Upgrade to a fixed version: Fortinet FortiOS (FortiGate) 7.2.9, 7.4.5; Fortinet FortiProxy 7.2.12, 7.4.6. Check the vendor advisory for mitigations.
References
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