Exploited CVEs / Fortinet / CVE-2023-48788
CVE-2023-48788
Fortinet FortiClient EMS SQL Injection Vulnerability. Exploitation in the wild is confirmed by CISA, not predicted, and the vulnerability is known to be used in ransomware campaigns. Federal agencies were required to remediate by 2024-04-15 (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 FortiClient EMS vulnerability, Critical severity, CVSS 9.8. Added to the CISA KEV catalog 2024-03-25.
Risk summary
Updated July 26, 2026. Data refreshed on every build from MSRC, CISA KEV, and FIRST EPSS.
Senserva AI Opinion for CVE-2023-48788
Fortinet FortiClient EMS, the server that manages endpoint agents across a fleet, has a SQL injection that unauthenticated attackers convert into SYSTEM-level command execution. Compromising an endpoint management server is a shortcut to every machine it manages, which is why ransomware operators adopted this quickly. CVSS 9.8, EPSS 98 percent, KEV since March 2024.
Do this: Patch FortiClient EMS today and investigate the server for attacker tooling if it was internet-reachable while vulnerable, since it can push software to your whole fleet.
AI-generated from public data, 2026-07-07. Verify against the vendor advisory before acting.
Senserva AI Opinion and rich prompt for CVE-2023-48788
Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.
Full tracking and change history for CVE-2023-48788
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: 2024-04-15 (past due).
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Official fix for CVE-2023-48788
The authoritative fix and affected-version list are published by the vendor. Find the FortiClient EMS advisory on Fortinet PSIRT Advisories.
Common questions about CVE-2023-48788
Is CVE-2023-48788 actively exploited?
Yes. CVE-2023-48788 was added to the CISA Known Exploited Vulnerabilities (KEV) catalog on 2024-03-25, which means exploitation in the wild has been confirmed, not predicted. Its EPSS 30-day exploitation probability is 98%. CISA also reports it is known to be used in ransomware campaigns.
What is the CISA deadline and required action for CVE-2023-48788?
CISA set the federal (BOD 22-01) remediation due date at 2024-04-15, which has passed; treat any unremediated system as overdue. The verbatim required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
What fixes CVE-2023-48788?
The authoritative fix is in the vendor advisory: see Fortinet PSIRT Advisories for the patched FortiClient EMS 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-2023-48788?
Yes. This page includes a free, ready-to-paste AI prompt containing CVE-2023-48788'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.
