CVE-2026-39813

| EUVD-2026-22344 CRITICAL
2026-04-14 fortinet
Privilege Escalation Fortinet Path Traversal Fortisandbox Fortisandbox Cloud
9.8
CVSS 3.1
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CVSS VectorNVD

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

Lifecycle Timeline

2
Analysis Generated
Apr 14, 2026 - 17:03 vuln.today
CVSS Changed
Apr 14, 2026 - 16:22 NVD
9.1 (CRITICAL) 9.8 (CRITICAL)

DescriptionNVD

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 <insert attack vector here>

AnalysisAI

Path traversal vulnerability in Fortinet FortiSandbox allows unauthenticated remote attackers to achieve privilege escalation with critical severity (CVSS 9.8). Affects FortiSandbox versions 4.4.0-4.4.8, 5.0.0-5.0.5, and FortiSandbox Cloud versions 23.4, 24.1, and 5.0.4-5.0.5. …

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RemediationAI

Within 24 hours: Inventory all FortiSandbox deployments, verify version numbers, and isolate any exposed instances from untrusted networks pending remediation. Within 7 days: Implement network segmentation to restrict FortiSandbox access to authorized personnel only, enable enhanced logging, and contact Fortinet for patch timeline. …

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CVE-2026-39813 vulnerability details – vuln.today
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