4.3

CVE-2025-54972: fortinet fortimail CRLF Injection

CVSS: 4.3v3.1MediumModified
Published 18-11-2025Last modified 14-01-2026
Open JSON

Vulnerability summary

CVE-2025-54972 is a medium (CVSS 4.3) CRLF Injection vulnerability in fortinet fortimail. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 11.1% of scored vulnerabilities.

Overall risk
17/100
0100
Low · default modelHow is this calculated?
CVSS score
4.3/10
010
Medium · v3.1 (NVD)
EPSS score
0.21%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 18-11-2025
    PublishedVulnerability first disclosed.
  2. 14-01-2026
    Last modifiedVulnerability information updated.

Description

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

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.21%

Chance of exploitation in the next 30 days

Percentile

11%

Versus all other CVEs

30-day change

+0.01 pp

From 0.20% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.21%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Fortinet1 product
  • fortimail≥ 7.6.0, ≤ 7.6.3 | ≥ 7.4.0, ≤ 7.4.5 | ≥ 7.2.0, ≤ 7.2.9 | ≥ 7.0.0, ≤ 7.0.9 | ≥ 7.0.0, < 7.4.6 | ≥ 7.6.0, < 7.6.4

1 vendor · 1 product

References

1 links