🔐 CVE Alert

CVE-2026-104286

CRITICAL 9.8 ⚠️ CISA KEV
CVSS Score
9.8
EPSS Score
2.2%
EPSS Percentile
82th

An improper limitation of a pathname to a restricted directory ('path traversal') vulnerability in Fortinet FortiMail 8.0.0 through 8.0.1, FortiMail 7.6.0 through 7.6.6, FortiMail 7.4.0 through 7.4.8, FortiMail 7.2.0 through 7.2.9 may allow an unauthenticated attacker to write arbitrary files on the underlying system via crafted HTTP or HTTPS requests.

CWE CWE-22
Vendor fortinet
Product fortimail
Ecosystems
Industries
NetworkingSecurity
Published Oct 1, 2026
Last Updated Oct 7, 2026
⚠️ Actively Exploited — Act Now

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Affected Versions

Fortinet / FortiMail
8.0.0 7.6.0 ≤ 7.6.5 7.4.0 ≤ 7.4.6 7.2.0 ≤ 7.2.9 7.0.0 ≤ 7.0.9

References

NVD ↗ CVE.org ↗ EPSS Data ↗
fortiguard.fortinet.com: https://fortiguard.fortinet.com/psirt/FG-IR-26-175 cisa.gov: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-104286