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CISA KEV · Known exploitedCritical

CVE-2026-25089

Fortinet FortiSandbox, FortiSandbox Cloud, FortiSandbox PaaS

A improper neutralization of special elements used in an os command ('os command injection') vulnerability in Fortinet FortiSandbox 5.0.0 through 5.0.5, FortiSandbox 4.4.0 through 4.4.8, FortiSandbox 4.2 all versions, FortiSandbox Cloud 5.0.4 through 5.0.5, FortiSandbox PaaS 5.0.4 through 5.0.5 may allow an unauthenticated attacker to execute unauthorized commands via specifically crafted HTTP requests

CVSS
9.8
EPSS
69.8%
99.3% percentile
CISA KEV
Listed
Published
2026.06.10
PRIORITY ASSESSMENT

Immediate review

CISA has listed this vulnerability in the Known Exploited Vulnerabilities catalog.

Known exploitationConfirmed by CISA KEV
Exploit probability69.8%
Technical severityCVSS 9.8

Vulnerability overview

A improper neutralization of special elements used in an os command ('os command injection') vulnerability in Fortinet FortiSandbox 5.0.0 through 5.0.5, FortiSandbox 4.4.0 through 4.4.8, FortiSandbox 4.2 all versions, FortiSandbox Cloud 5.0.4 through 5.0.5, FortiSandbox PaaS 5.0.4 through 5.0.5 may allow an unauthenticated attacker to execute unauthorized commands via specifically crafted HTTP requests

Affected product and versions

Product
Fortinet FortiSandbox, FortiSandbox Cloud, FortiSandbox PaaS
Affected versions
>= 5.0.0 <= 5.0.5, >= 4.4.0 <= 4.4.8, >= 4.2.1 <= 4.2.8, >= 5.0.4 <= 5.0.5, >= 4.2.0 <= 4.2.8, >= 4.4.0 < 4.4.9, >= 5.0.0 < 5.0.6, >= 5.0.4 < 5.0.6
Fixed versions
4.4.9, 5.0.6

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
CISA 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.

Due date: 2026.07.19
  1. 1
    Identify

    Confirm that Fortinet FortiSandbox, FortiSandbox Cloud, FortiSandbox PaaS and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-78
KEV added
2026.07.16
Ransomware use
미확인
CVE-2026-25089 — Fortinet FortiSandbox, FortiSandbox Cloud, FortiSandbox PaaS | SECUFOCUS NOW