CVE-2026-21643

critical Fortinet ⚠️ CISA KEV — Exploited in the Wild
CVSS v3 Base Score
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score
38.2%
Exploitation probability in 30 days
Top 3% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Confidentiality
High
Integrity
High
Availability
High
Published: February 6, 2026 (97 days ago)
Last Modified: April 14, 2026
Vendor: Fortinet
Source: NVD

⚠️ CISA Known Exploited Vulnerability

Added to KEV: 2026-04-13
Remediation Due: 2026-04-16 (⚠ 28d overdue)

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.

CWE

CWE-89

Affected Products

fortinet forticlientems

References

🔗 fortiguard.fortinet.com 🔗 github.com 🔗 www.cisa.gov