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CVE-2026-25089

CRITICAL
9.8 CISA KEVNVD

Summary

generated automatically from NVD data

CVE-2026-25089 is an OS command injection flaw (CWE-78) in Fortinet FortiSandbox, including the FortiSandbox Cloud and PaaS offerings, across the 4.2, 4.4 and 5.0 branches. An unauthenticated attacker could send specially crafted HTTP requests to execute unauthorized commands. It is rated CVSS 9.8 (CRITICAL) and is listed in the CISA KEV catalog, which indicates active exploitation.

NVD 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

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⚠️ Actively exploited — CISA KEV

This CVE was added to CISA's Known Exploited Vulnerabilities catalog on 2026-07-16. It is confirmed exploited in the wild and must be patched as a priority.

Remediation deadline (US federal agencies): 2026-07-19

EPSS · FIRST.org

76.1%probability of exploitation in the next 30 days

Higher than 99% of scored CVEs

EPSS (Exploit Prediction Scoring System) estimates, from observed exploitation activity, how likely a CVE is to be exploited in the next 30 days. It complements CVSS, which measures severity, not likelihood. Score of 2026-10-19, recomputed daily by FIRST.org.

In-depth analysis on cveo.tech

We've published a detailed analysis of this CVE — exploitation, IOCs and mitigation.

CVSS v3.1 Score

9.8
/ 10.0
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Information

Published
9 juin 2026
Updated
23 juil. 2026
Status
Analyzed
Source
psirt@fortinet.com

Affected products

fortinet fortisandbox
Versions : 4.2.8, 4.4.9, 5.0.6
fortinet fortisandbox cloud
Versions : 5.0.6
fortinet fortisandbox paas
Versions : 5.0.6

Weaknesses (CWE)

CWE-78

References (2)

Similar CVEs

Other vulnerabilities of type CWE-78

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