CVE-2026-39808
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>
Actively exploited
- In the CISA exploited-vulnerabilities catalogue since Jul 16, 2026
- US federal agencies must remediate it by Jul 19, 2026 (BOD 22-01)
- First attack observed 55 days after disclosure
- Confirmed by sensors, not only by reports
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.
Source: CISA KEV · Sep 4, 2026 Aug 7, 2026 Aug 5, 2026 Aug 1, 2026 Jul 30, 2026 Jul 28, 2026
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HAffected products
| Vendors | Product | Versions |
|---|---|---|
| fortinet | fortisandbox | <= 4.4.9 |
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