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Fortinet CVE-2026-21643

CRITICAL
SQL Injection (CWE-89)
2026-02-06 psirt@fortinet.com
9.8
CVSS 3.1
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CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
Added to CISA KEV
Apr 13, 2026 - 18:02 CISA
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
CVE Published
Feb 06, 2026 - 09:15 nvd
CRITICAL 9.8

DescriptionNVD

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.

AnalysisAI

A product has a SQL injection vulnerability enabling unauthenticated database compromise through improperly neutralized SQL commands.

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RemediationAI

Within 24 hours: Identify all FortiClientEMS 7.4.4 instances in your environment and isolate them from untrusted networks; enable comprehensive logging and begin threat hunting for exploitation attempts. Within 7 days: Contact Fortinet for patch availability and interim guidance; implement network segmentation to restrict FortiClientEMS access to authorized administrators only; deploy WAF rules to block malicious SQL injection payloads if externally exposed. …

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CVE-2026-21643 vulnerability details – vuln.today

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