CVE-2026-39808

CVE Enrichment

CVSS: 9.8 CRITICAL
EPSS: 47.36%
EPSS Percentile: 98.82%
CISA KEV: YES — Known Exploited Vulnerability

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>

Technical Details

CVSS Version: 3.1
CNA / NVD Source: psirt@fortinet.com
Published: 14-Apr-2026 23:16
Last Modified: 17-Jul-2026 12:16
EPSS Date: 2026-10-12
CWE: CWE-78

CVSS Vector


            CVSS:3.1                            AV:N /
                            AC:L /
                            PR:N /
                            UI:N /
                            S:U /
                            C:H /
                            I:H /
                            A:H

CISA KEV Details

Date Added: 2026-07-16
Remediation Due: 2026-07-19
Known Ransomware Campaign Use: Unknown
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.
Notes: https://fortiguard.fortinet.com/psirt/FG-IR-26-100 ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-39808

Affected Products / Versions

fortinet / fortisandbox
Version / affected range: * · from (inclusive) 4.4.0 · through (inclusive) 4.4.9
cpe:2.3:a:fortinet:fortisandbox:*:*:*:*:*:*:*:*

References

Last enrichment sync: 13-Oct-2026 03:33
Sources: NVD · FIRST EPSS · CISA KEV
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Reported Context (2)

CVE (129)

Malware (10)

Threat Actors (14)

Vendors (42)

Products (120)

Tools (2)

Industries (2)

Countries (2)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.