Vulnerability Intelligence Report
CVE-2026-39813
A path traversal: '../filedir' vulnerability in Fortinet FortiSandbox 5.0.0 through 5.0.5, FortiSandbox 4.4.0 through 4.4.8 may allow attacker to escalation of privilege via specially crafted HTTP requests.
No Active Exploit Signals
CVSS Base Score
9.1
CRITICAL
Exploitability:3.9
Impact Score:5.9
EPSS Probability:16.74%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-24 ↗Escalation of privilege
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Fortinet | FortiSandbox | 5.0.0 <= 5.0.5 (affected), 4.4.0 <= 4.4.8 (affected) |
| Fortinet | FortiSandbox Cloud | 24.1 (affected), 23.4 (affected), 5.0.4 <= 5.0.5 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
16.739%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Fortinet, Inc. · Vendor · USA |
| Reserved | 2026-04-07T15:24:13 |
| Published | 2026-04-14T15:38:30 |
| Last Updated | 2026-06-18T09:01:15 |
Community Chatter & Buzz