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CVE-2026-39813

Quick assessment

Affected
Fortinet FortiSandbox
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Fortinet FortiSandbox是美国飞塔（Fortinet）公司的一款APT（高级持续性威胁）防护设备。该设备提供双重沙盒技术、动态威胁智能系统、实时控制面板和报告等功能。 Fortinet FortiSandbox 5.0.0至5.0.5版本和4.4.0至4.4.8版本存在安全漏洞，该漏洞源于路径遍历，可能导致权限提升。

CVSS 9.1 · Critical EPSS 0.72% · P52

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 5

VendorProduct Version RangeStatus
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
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I. Basic Information for CVE-2026-39813

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
路径遍历：’../filedir’
Source: CVE Program / CVE List V5
Vulnerability Title
Fortinet FortiSandbox 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Fortinet FortiSandbox是美国飞塔（Fortinet）公司的一款APT（高级持续性威胁）防护设备。该设备提供双重沙盒技术、动态威胁智能系统、实时控制面板和报告等功能。 Fortinet FortiSandbox 5.0.0至5.0.5版本和4.4.0至4.4.8版本存在安全漏洞，该漏洞源于路径遍历，可能导致权限提升。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
Fortinet FortiSandbox 5.0.0 ~ 5.0.5 cpe:2.3:a:fortinet:fortisandbox:5.0.5:*:*:*:*:*:*:*
Fortinet FortiSandbox Cloud 24.1 cpe:2.3:a:fortinet:fortisandboxcloud:24.1:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-39813

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III. Intelligence Information for CVE-2026-39813

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Same Patch Batch · Fortinet · 2026-04-14 · 27 CVEs total

CVE-2026-39808 9.1 CRITICAL Fortinet FortiSandbox 操作系统命令注入漏洞
CVE-2026-39815 7.9 HIGH Fortinet FortiDDoS-F 安全漏洞
CVE-2026-22828 7.3 HIGH Fortinet FortiManager Cloud和Fortinet FortiAnalyzer Cloud 安全漏洞
CVE-2026-40688 6.7 MEDIUM Fortinet FortiWeb 缓冲区错误漏洞
CVE-2026-23708 6.7 MEDIUM Fortinet FortiSOAR PaaS和Fortinet FortiSOAR on-premise 授权问题漏洞
CVE-2025-61848 6.5 MEDIUM Fortinet多款产品 SQL注入漏洞
CVE-2026-39809 6.2 MEDIUM Fortinet FortiClientEms 安全漏洞
CVE-2025-53847 6.2 MEDIUM Fortinet FortiOS 访问控制错误漏洞
CVE-2026-22155 6.2 MEDIUM Fortinet FortiSOAR PaaS和Fortinet FortiSOAR on-premise 安全漏洞
CVE-2026-25691 6.2 MEDIUM Fortinet FortiSandbox 路径遍历漏洞
CVE-2026-39814 6.2 MEDIUM Fortinet FortiWeb 安全漏洞
CVE-2026-22573 6.2 MEDIUM Fortinet FortiSOAR PaaS和Fortinet FortiSOAR on-premise 路径遍历漏洞
CVE-2024-23104 5.4 MEDIUM Fortinet FortiNDR 信息泄露漏洞
CVE-2026-21742 5.4 MEDIUM Fortinet FortiSOAR PaaS和Fortinet FortiSOAR on-premise 安全漏洞
CVE-2025-68649 5.4 MEDIUM Fortinet多款产品 路径遍历漏洞
CVE-2025-61624 5.4 MEDIUM Fortinet多款产品 路径遍历漏洞
CVE-2026-39810 5.2 MEDIUM Fortinet FortiClientEMS 安全漏洞
CVE-2025-61886 4.9 MEDIUM Fortinet FortiSandbox 跨站脚本漏洞
CVE-2026-39811 4.4 MEDIUM Fortinet FortiWeb 输入验证错误漏洞
CVE-2026-22154 4.4 MEDIUM Fortinet FortiSOAR PaaS和Fortinet FortiSOAR on-premise 跨站脚本漏洞

Showing top 20 of 27 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: FortiSandbox
Same vendor: Fortinet
Same weakness: CWE-24

V. Comments for CVE-2026-39813

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