CVE-2022-42471: Fortinet FortiWeb

Medium severity, CVSS 5.4. EPSS: 0.5% chance of exploitation in the next 30 days.

An improper neutralization of CRLF sequences in HTTP headers ('HTTP Response Splitting') vulnerability [CWE-113] In FortiWeb version 7.0.0 through 7.0.2, FortiWeb version 6.4.0 through 6.4.2, FortiWeb version 6.3.6 through 6.3.20 may allow an authenticated and remote attacker to inject arbitrary headers.

Affected products

• Fortinet FortiWeb: from 6.3.6, up to and including 6.3.21; version 6.4.0 only; version 6.4.1 only; version 6.4.2 only; version 7.0.0 only; version 7.0.1 only; …

Published 2023-01-03. Last modified 2026-06-17.