What’s Vulnerable › Vulnerabilities

CVE-2021-32598

• Severity: medium (CVSS 4.3 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: 2021-08-05 · updated 2026-06-17
• Weakness: CWE-444

Description

An improper neutralization of CRLF sequences in HTTP headers ('HTTP Response Splitting') vulnerability In FortiManager and FortiAnalyzer GUI 7.0.0, 6.4.6 and below, 6.2.8 and below, 6.0.11 and below, 5.6.11 and below may allow an authenticated and remote attacker to perform an HTTP request splitting attack which gives attackers control of the remaining headers and body of the response.

Affected products

• Fortinet FortiAnalyzer: from 5.6.0 before 7.0.1 — fixed in 7.0.1
• Fortinet FortiManager: from 5.6.0 before 7.0.1 — fixed in 7.0.1

How to fix

Upgrade to a fixed version: Fortinet FortiAnalyzer 7.0.1; Fortinet FortiManager 7.0.1. Check the vendor advisory for mitigations.

References

• https://fortiguard.com/advisory/FG-IR-21-063
• https://fortiguard.com/advisory/FG-IR-21-063

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