CVE-2026-21643
CRITICAL Actively ExploitedSQL Injection Vulnerability in FortiClientEMS 7.4.4 Allows Unauthenticated Remote Code Execution
CVSS v3
9.8
CRITICAL
EPSS Score
62.5%
exploit probability
CISA KEV
No
known exploited
Exploitation
active
SSVC status
Description
An improper neutralization of special elements used in an sql command ('sql injection') vulnerability in Fortinet FortiClientEMS 7.4.4 may allow an unauthenticated attacker to execute unauthorized code or commands via specifically crafted HTTP requests.
Technical Details
- CVSS v3 Vector
- 3.1
- Published
- 2/6/2026
- Last Modified
- 4/16/2026
Frequently Asked Questions
What is CVE-2026-21643?
An improper neutralization of special elements used in an sql command ('sql injection') vulnerability in Fortinet FortiClientEMS 7.4.4 may allow an unauthenticated attacker to execute unauthorized code or commands via specifically crafted HTTP requests.
Is CVE-2026-21643 actively exploited?
Yes. CVE-2026-21643 has been observed in active exploitation according to SSVC analysis.
What is the CVSS score for CVE-2026-21643?
CVE-2026-21643 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string 3.1.
Is CVE-2026-21643 affecting your environment?
Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.