FortiMail CRLF Injection in 7.0-7.6.3 Allow Header Injection
CVE-2025-54972 Published on November 18, 2025
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
Vulnerability Analysis
CVE-2025-54972 is exploitable with network access, requires user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality, with no impact on integrity, and no impact on availability.
Weakness Type
What is a CRLF Injection Vulnerability?
The software uses CRLF (carriage return line feeds) as a special element, e.g. to separate lines or records, but it does not neutralize or incorrectly neutralizes CRLF sequences from inputs.
CVE-2025-54972 has been classified to as a CRLF Injection vulnerability or weakness.
Products Associated with CVE-2025-54972
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Affected Versions
Fortinet FortiMail:- Version 7.6.0, <= 7.6.3 is affected.
- Version 7.4.0, <= 7.4.5 is affected.
- Version 7.2.0, <= 7.2.9 is affected.
- Version 7.0.0, <= 7.0.9 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.