FortiMail
CVE-2025-54972: Crlf injection in FortiMail
An improper neutralization of crlf sequences ('crlf injection') vulnerability in Fortinet FortiMail 7.6.0 through 7.6.3, FortiMail 7.4.0 through 7.4.5, FortiMail 7.2 all versions, FortiMail 7.0 all versions may allow an attacker to inject headers in the response via convincing a user to click on a specifically crafted link
Published
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| FortiMail 7.6.0 to 7.6.3 | 7.6.4 or later |
| FortiMail 7.4.0 to 7.4.5 | 7.4.6 or later |
| FortiMail 7.2.0 to 7.2.9 | Upgrade past 7.2.9; see the advisory |
| FortiMail 7.0.0 to 7.0.9 | Upgrade past 7.0.9; see the advisory |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
An improper neutralization of crlf sequences ('crlf injection') vulnerability in Fortinet FortiMail 7.6.0 through 7.6.3, FortiMail 7.4.0 through 7.4.5, FortiMail 7.2 all versions, FortiMail 7.0 all versions may allow an attacker to inject headers in the response via convincing a user to click on a specifically crafted link
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 10 Oct 2026.