Exploited CVEs / Fortinet / CVE-2026-25089
CVE-2026-25089
Fortinet FortiSandbox OS Command Injection Vulnerability. Exploitation in the wild is confirmed by CISA, not predicted. Federal agencies were required to remediate by 2026-07-19 (that deadline has passed); treat that date as the outer bound for your own environment. The fix is in the vendor advisory: Fortinet PSIRT Advisories, linked below.
Actively exploited Fortinet FortiSandbox vulnerability, Critical severity, CVSS 9.8. Added to the CISA KEV catalog 2026-07-16.
Risk summary
Updated July 26, 2026. Data refreshed on every build from MSRC, CISA KEV, and FIRST EPSS.
Senserva AI Opinion for CVE-2026-25089
An unauthenticated attacker can send crafted HTTP requests to FortiSandbox, FortiSandbox Cloud, or FortiSandbox PaaS and run arbitrary OS commands, with no credentials required. This matters right now because CISA confirmed active exploitation and added it to KEV on 2026-07-16, and at Severity Critical (CVSS 9.8) with a 70 percent EPSS score the risk of hits is high. FortiSandbox often sits deep in security infrastructure and inspects untrusted files, so a compromise here undermines the tool meant to catch other threats.
Do this: Identify all FortiSandbox appliances and cloud/PaaS instances, apply Fortinet's fixed release immediately, and restrict HTTP management access to trusted networks until patched.
AI-generated from public data, 2026-07-25. Verify against the vendor advisory before acting.
Senserva AI Opinion and rich prompt for CVE-2026-25089
Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.
Full tracking and change history for CVE-2026-25089
Published and last-revised dates are authoritative, from Microsoft MSRC (or the CISA KEV date-added). Senserva additionally records day-to-day changes from 2026-07-07, refreshed several times a day; the change count reflects that forward-only tracking.
CISA required action
Federal (BOD 22-01) remediation due date: 2026-07-19 (past due).
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.
Official fix for CVE-2026-25089
The authoritative fix and affected-version list are published by the vendor. Find the FortiSandbox advisory on Fortinet PSIRT Advisories.
Common questions about CVE-2026-25089
Is CVE-2026-25089 actively exploited?
Yes. CVE-2026-25089 was added to the CISA Known Exploited Vulnerabilities (KEV) catalog on 2026-07-16, which means exploitation in the wild has been confirmed, not predicted. Its EPSS 30-day exploitation probability is 70%.
What is the CISA deadline and required action for CVE-2026-25089?
CISA set the federal (BOD 22-01) remediation due date at 2026-07-19, which has passed; treat any unremediated system as overdue. The verbatim 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.
What fixes CVE-2026-25089?
The authoritative fix is in the vendor advisory: see Fortinet PSIRT Advisories for the patched FortiSandbox versions and any workarounds. KEV listing makes this a fix-first item: patch it ahead of higher-CVSS issues nobody is exploiting.
Can I ask my own AI about CVE-2026-25089?
Yes. This page includes a free, ready-to-paste AI prompt containing CVE-2026-25089's key facts: severity, CVSS, EPSS, the KEV date, the CISA due date, and the required action. Copy it into Claude, ChatGPT, or Copilot; the data is refreshed twice a day (5 AM and 3 PM US Central).
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Authoritative references
Every actively exploited CVE, searchable with due dates and CSV export: the exploited-CVE tracker. The newest additions: exploited this week.
