Vulnerability Intelligence Report
Fortinet FortiMail Path Traversal Vulnerability
CVE-2026-104286
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.
CISA KEV
SSVC: Active Exploitation
Automatable
Path Traversal
CVSS Base Score
9.8
CRITICAL
Exploitability:3.9
Impact Score:5.9
EPSS Probability:1.78%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-22 ↗Execute unauthorized code or commands
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Fortinet | FortiMail | 8.0.0 (affected), 7.6.0 <= 7.6.5 (affected), 7.4.0 <= 7.4.6 (affected), 7.2.0 <= 7.2.9 (affected), 7.0.0 <= 7.0.9 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
CISA KEV
ACTIVE IN CATALOG
EPSS Score
1.779%
GitHub Advisory
Vulnerability Class
Path Traversal
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Fortinet, Inc. · Vendor · USA |
| Reserved | 2026-10-01T19:12:54 |
| Published | 2026-10-01T19:17:38 |
| Last Updated | 2026-10-02T16:56:44 |
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