CVE-2026-39808
CRITICAL KEV CISA Exploitation: ACTIVE
9.1
CVSS 3.1
Description
A improper neutralization of special elements used in an os command ('os command injection') vulnerability in Fortinet FortiSandbox 4.4.0 through 4.4.8 may allow attacker to execute unauthorized code or commands via <insert attack vector here>
Metadata
Severity & Metrics
9.1
CRITICAL CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C
SSVC — CISA Coordinator
CISA Known Exploited Vulnerability
Required action
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
CISA description
Fortinet FortiSandbox contains an OS command injection vulnerability that could allow an unauthenticated attacker to execute unauthorized code or commands via crafted HTTP requests.
Affected products (2)
| Vendor | Product | Platform | Versions |
|---|---|---|---|
| Fortinet | FortiSandbox | — | 4.4.0 ≤ 4.4.8 |
| Fortinet | FortiSandbox PaaS | — | 23.4.4374, 23.4.4350, 23.3.4329, 23.1.4245 … |
Weakness (CWE)
| CWE | Source | Description |
|---|---|---|
| CWE-78 | cna | Execute unauthorized code or commands |
CVSS scores (1)
| Score | Severity | Version | Source | Vector |
|---|---|---|---|---|
| 9.1 | CRITICAL | 3.1 | cna | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C |
References (1)
- https://fortiguard.fortinet.com/psirt/FG-IR-26-100 https://fortiguard.fortinet.com/psirt/FG-IR-26-100