CVE-2026-21643 | BDVDB-2026-314182 Detail

FortinetFortiClientEMS

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.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: network.

Weaknesses#

CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

References#

Exploit#

https://github.com/0xBlackash/CVE-2026-21643/blob/main/cve-2026-21643.py

History#

Version 12026-02-06Record published in the CVE List.
Version 22026-11-06Most recent update recorded in the CVE List.

Published

Published: 2026-02-06
Last modified: 2026-11-06

Vendor information

Vendor: Fortinet
Product: FortiClientEMS

All Fortinet vulnerabilities

Score

9.1 Critical

EPSS

97.7%, Very High

Estimated chance of exploitation in the next 30 days. EPSS percentile: 99.9.

KEV

Yes

Listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

SQL Injection

Action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Affected Systems

Vulnerable
7.4.4
Fixed
Not stated

Scoring System

CVSS v4.0

Not available

CVSS v3.1

9.1 Critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	None
User Interaction	None
Scope	Unchanged
Confidentiality	High
Integrity	High
Availability	High

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).