CVE-2026-25089

Description

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

Overview

State: PUBLISHED
Assigner (CNA): fortinet
CVSS severity: CRITICAL
CVSS score: 9.1 / 10
CVSS vector: 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
Effective score: 9.1 / 10 CRITICAL source: CNA overview
CWE(s): CWE-78
Reserved: 2026-01-29
Published: 2026-06-09 14:27 UTC
Last updated: 2026-06-10 13:35 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/25xxx/CVE-2026-25089.json
Linked Threat: CVE-2026-25089 — Fortinet FortiSandbox: Fortinet FortiSandbox OS Command Injection Vulnerability

CISA Known Exploited Vulnerabilities CISA KEV

CISA has confirmed in-the-wild exploitation of this CVE. Federal agencies must remediate by the due date below; private orgs should treat it as priority-1.

Vulnerability name: Fortinet FortiSandbox OS Command Injection Vulnerability
Vendor / project: Fortinet
Product: FortiSandbox
Date added to KEV: 2026-07-16
Remediation due: 2026-07-19
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.
Ransomware campaign use: Unknown
CISA notes: https://fortiguard.fortinet.com/psirt/FG-IR-26-141 ; 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-2026-25089
CISA listing: www.cisa.gov/known-exploited-vulnerabilities-catalog

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published: 2026-06-09 16:16:39 UTC
NVD last modified: 2026-07-23 08:10:00 UTC
NVD CVSS v3.1: 9.8 / 10 CRITICAL source: psirt@fortinet.com
NVD CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitability subscore: 3.9 / 10
Impact subscore: 5.9 / 10
EPSS score: 0.6983 (probability of exploitation in next 30 days)
EPSS percentile: 99.30% vs all CVEs — higher = more likely to be exploited, as of 2026-07-27

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID: EUVD-2026-35443
Assigner: fortinet
Published: Jun 9, 2026, 2:27:47 PM
Updated: Jul 17, 2026, 3:56:23 AM
EUVD base score (CVSS 3.1): 9.1 / 10
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
EUVD-reported EPSS: 69.8300
Vendors: Fortinet
Products: FortiSandbox (4.2.1 ≤4.2.8)

FortiSandbox (5.0.0 ≤5.0.5)

FortiSandbox Cloud (5.0.4 ≤5.0.5)

FortiSandbox PaaS (5.0.4 ≤5.0.5)

FortiSandbox (4.4.0 ≤4.4.8)
Aliases: GHSA-gw24-hwf5-92h2

ENISA description: 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

EUVD references (1)

https://fortiguard.fortinet.com/psirt/FG-IR-26-141

Affected products (3)

Vendor	Product	Versions	Platforms
Fortinet	FortiSandbox	`5.0.0` (affected), `4.4.0` (affected), `4.2.1` (affected)	—
Fortinet	FortiSandbox Cloud	`5.0.4` (affected)	—
Fortinet	FortiSandbox PaaS	`5.0.4` (affected)	—

Affected products — CPE 2.3 (3) NVD

NVD's normalized CPE 2.3 matchers, used by vendor tools (vulnerability scanners, asset managers) for automated detection. Compare with the CNA's free-text "Affected products" section above.

cpe:2.3:a:fortinet:fortisandbox:*:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortisandbox_cloud:*:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortisandbox_paas:*:*:*:*:*:*:*:*

Vendor references (1)

References embedded in the original CVE record by the assigning CNA.

https://fortiguard.fortinet.com/psirt/FG-IR-26-141

MITRE references (1) cveawg.mitre.org

Pulled from MITRE's CVE Services API by the 🛰 Backfill from MITRE button.

https://fortiguard.fortinet.com/psirt/FG-IR-26-141

Web references (0)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

No web references attached yet.

NVD-tagged references (2)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

https://fortiguard.fortinet.com/psirt/FG-IR-26-141 psirt@fortinet.com Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-25089 134c704f-9b21-4f2e-91b3-4a467353bcc0 US Government Resource

Indicators (2)

IOCs linked to the auto-promoted Threat row.

Type	Value	VirusTotal	Attached
cwe	`CWE-78`	no local data	2026-07-17 05:32 UTC
cve	`CVE-2026-25089`	no local data	2026-07-17 05:32 UTC

Remediations (11)

Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.

CISA Required Action

CISA KEV

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 Known ransomware campaign use: Unknown

2026-07-17 05:32 UTC
FortiSandbox CVE-2026-25089: Patch Exploited RCE Bugs - How To Fix Guide

web:howtofix.guide

Attackers are probing Fortinet FortiSandbox CVE-2026-25089 , CVE - 2026 -39813, and CVE - 2026 -39808. Patch affected systems and check logs.

2026-06-19 02:12 UTC
Nvd - Cve-2026-25089

web:nvd.nist.gov

Official websites use .gov A .gov website belongs to an official government organization in the United States.

2026-06-19 02:12 UTC
Fortinet patched a new critical FortiSandbox flaw

web:securityaffairs.com

Fortinet patched a critical FortiSandbox vulnerability that could let unauthenticated attackers remotely execute commands via crafted HTTP requests. Fortinet released security updates to address several vulnerabilities affecting FortiSandbox, FortiOS, FortiProxy, and FortiPortal. The most severe issue, tracked as CVE-2026-25089 (CVSS score of 9.8), is an OS command injection flaw in ...

2026-06-19 02:12 UTC
Fix CVE-2026-25089 FortiSandbox Bug Now - securityonline.info

web:securityonline.info

An urgent patch fixes the critical CVE-2026-25089 FortiSandbox bug. Attackers can execute remote commands, so update your systems immediately.

2026-06-19 02:12 UTC
Fortinet FortiSandbox Vulnerability Exploited by Attackers (CVE-2026 ...

web:threatprotect.qualys.com

Threat actors are exploiting three security vulnerabilities in Fortinet FortiSandbox, tracked as CVE - 2026 -39808, CVE-2026-25089 , & CVE - 2026 -39813. Successful exploitation of the vulnerabilities could lead to OS command injection, authentication bypass, and privilege escalation.

2026-06-19 02:12 UTC
Attackers are exploiting FortiSandbox vulnerabilities

web:www.helpnetsecurity.com

Attackers have been spotted exploiting three vulnerabilities ( CVE - 2026 -39813, CVE - 2026 -39808, CVE-2026-25089 ) in FortiSandbox, a platform that other Fortinet security products depend on for threat ...

2026-06-19 02:12 UTC
Breaking Down CVE-2026-25089: Unauthenticated Command Injection in ...

web:www.secpod.com

A critical OS command injection vulnerability, CVE-2026-25089 , affects Fortinet FortiSandbox, FortiSandbox Cloud, and FortiSandbox PaaS deployments. The vulnerability allows a remote, unauthenticated attacker to execute arbitrary commands on affected devices by exploiting improper neutralization of special elements used in OS commands within the WEB UI.

2026-06-19 02:12 UTC
CVE-2026-25089 | Tenable®

web:www.tenable.com

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 ...

2026-06-19 02:12 UTC
Fortinet FortiSandbox CVE-2026-25089 Allows Unauthenticated RCE

web:dailysecurityreview.com

Fortinet has patched CVE-2026-25089 , a CVSS 9.1 critical OS command injection vulnerability in the FortiSandbox Web User Interface that allows an unauthenticated remote attacker to execute arbitrary commands on the affected appliance. No active exploitation has been reported, and the fix is available in FortiSandbox 4.4.9 and 5.0.6. CVE-2026-25089 : OS Command Injection in FortiSandbox's Web ...

2026-06-19 02:12 UTC
CVE-2026-25089 - Critical Vulnerability - TheHackerWire

web:www.thehackerwire.com

CVE-2026-25089 is a Critical severity vulnerability (CVSS 9.8). A improper neutralization of special elements used in an os command ('os command injection') vulnerability in Fortinet FortiSandbox 5.0.0 through...

2026-06-19 02:12 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-25089.json.

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