Skip to content
All vulnerabilities
CVE-2026-21643KEV

Fortinet FortiClient EMS SQL Injection Vulnerability

Severity
Critical9.8CVSS 3.1, Critical
EPSS
94%
Published
6 Feb 2026
Updated
17 Jun 2026

Description

Title, description and vendor guidance are quoted from the source records.

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.

Weakness: CWE-89

Known exploited

Added to CISA KEV on 13 Apr 2026

Federal remediation due date: 16 Apr 2026

Required 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.

Exploit prediction

94% probability of exploitation in the next 30 days (percentile 100%).

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

What the source states, per branch

Versions matched by Patcharo

Fortinet FortiClient EMSSource: Fortinet (CVE record)

BranchAffectedFixed in
7.4
Exact releases: 7.4.4

Versions not listed are stated unaffected by the vendor.

Workaround / Vendor remediation

Vendor remediation · FortiClient EMS

Upgrade to upcoming FortiClientEMS version 8.0.0 or above Upgrade to FortiClientEMS version 7.4.5 or above

References

Provenance

Every fact on this page comes from the sources below. Nothing is written by an AI.

Fortinet (CVE record)
Fortinet (CVE record) · 27 Sept 2026, 23:46 UTC · Parser patcharo-cve5/1.1.0
CISA Known Exploited Vulnerabilities
CISA Known Exploited Vulnerabilities · 27 Sept 2026, 23:42 UTC · Parser patcharo-kev/1.0.0
NVD
NVD · 27 Sept 2026, 23:44 UTC · Parser patcharo-nvd/1.0.0
FIRST EPSS
FIRST EPSS · 27 Sept 2026, 23:46 UTC · Parser patcharo-epss/1.0.0

Last verified: 28 Sept 2026, 02:31 UTC