CVE-2026-21643 — Fortinet FortiClient EMS SQL Injection Vulnerability
CVE-2026-21643: Fortinet FortiClient EMS SQL Injection Vulnerability
CISA Known Exploited Vulnerability (KEV)
| Vendor / project | Fortinet |
| Product | FortiClient EMS |
| Date added | 2026-04-13 |
| Due date | 2026-04-16 |
| Ransomware campaign use | Unknown |
Description
Fortinet FortiClient EMS contains a SQL injection vulnerability that may allow an unauthenticated attacker to execute unauthorized code or commands via specifically crafted HTTP requests.
Required action (CISA)
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Notes
https://fortiguard.fortinet.com/psirt/FG-IR-25-1142 ; https://nvd.nist.gov/vuln/detail/CVE-2026-21643
References
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-21643
- KEV catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog