CVE-2026-25089

Published Jun 9, 2026

Last updated 4 days ago

Overview

AI description

Automated description summarized from trusted sources.

CVE-2026-25089 is an operating system (OS) command injection vulnerability affecting Fortinet FortiSandbox, FortiSandbox Cloud, and FortiSandbox PaaS. This flaw, categorized as CWE-78 (Improper Neutralization of Special Elements used in an OS Command), allows an unauthenticated, remote attacker to execute unauthorized commands on the appliance. The vulnerability is triggered by sending specially crafted HTTP requests, specifically exploiting a second-order command injection within the JSON input of the "start VNC" feature in the web-based management interface. Successful exploitation of CVE-2026-25089 can lead to the execution of arbitrary OS commands on the underlying system. Affected versions include FortiSandbox 5.0.0 through 5.0.5, FortiSandbox 4.4.0 through 4.4.8, all FortiSandbox 4.2 versions, FortiSandbox Cloud 5.0.4 through 5.0.5, and FortiSandbox PaaS 5.0.4 through 5.0.5.

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
Source: psirt@fortinet.com
NVD status: Analyzed
Products: fortisandbox, fortisandbox_cloud, fortisandbox_paas

Risk scores

CVSS 3.1

Type: Secondary
Base score: 9.8
Impact score: 5.9
Exploitability score: 3.9
Vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity: CRITICAL

Weaknesses

psirt@fortinet.com: CWE-78

Hype score is a measure of social media activity compared against trending CVEs from the past 12 months. Max score 100.

Hype score: 6

Configurations

[
  {
    "nodes": [
      {
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:a:fortinet:fortisandbox:*:*:*:*:*:*:*:*",
            "matchCriteriaId": "814D77BE-F536-42DE-B068-F92B95D68248",
            "versionEndIncluding": "4.2.8",
            "versionStartIncluding": "4.2.0",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:a:fortinet:fortisandbox:*:*:*:*:*:*:*:*",
            "matchCriteriaId": "0025C9C0-8D61-4563-96F9-F4E09DD83B26",
            "versionEndExcluding": "4.4.9",
            "versionStartIncluding": "4.4.0",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:a:fortinet:fortisandbox:*:*:*:*:*:*:*:*",
            "matchCriteriaId": "3AAEF316-2134-4398-911C-E7532CD3AFF2",
            "versionEndExcluding": "5.0.6",
            "versionStartIncluding": "5.0.0",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:a:fortinet:fortisandbox_cloud:*:*:*:*:*:*:*:*",
            "matchCriteriaId": "D479507F-4DD8-4455-A8DB-138AD56C6822",
            "versionEndExcluding": "5.0.6",
            "versionStartIncluding": "5.0.4",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:a:fortinet:fortisandbox_paas:*:*:*:*:*:*:*:*",
            "matchCriteriaId": "61A9A2E9-3086-4172-B3A3-212873B8C4A9",
            "versionEndExcluding": "5.0.6",
            "versionStartIncluding": "5.0.4",
            "vulnerable": true
          }
        ],
        "negate": false,
        "operator": "OR"
      }
    ]
  }
]

References

Sources include official advisories and independent security research.