TI-2026-17435 Aliases CVE-2026-21643 GHSA-r6vr-hwpr-qqch

SQL injection in Fortinet FortiClientEMS

CRITICAL 98Exploited in the wildCWE-89Published 2026-02-06 · Updated 2026-11-06

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: SQL injection
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-89.

Summary

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.

Why it matters now

Exploitation Active In CISA KEV since 2026-04-13CISA due date 2026-04-16

EPSS 0.97735 99th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Active
Automatable: Yes
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Fortinet	FortiClientEMS	7.4.4	—	No fix listed	CNA

FortiClientEMS VendorFortinet Affected 7.4.4 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:fortinet:forticlientems:7.4.4:::::::*	7.4.4	Vulnerable	Fortinet

cpe:2.3:a:fortinet:forticlientems:7.4.4:*:*:*:*:*:*:* Versions 7.4.4 Vulnerable ·Fortinet

Remediation

No fixed version listed by the sources yet.

Timeline

2026-04-13 Added to CISA KEV
2026-10-02 Threatist record created from CVE-2026-21643
2026-10-03 Alias added: GHSA-r6vr-hwpr-qqch

References

Exploit 1

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

Advisory 1

https://fortiguard.fortinet.com/psirt/FG-IR-25-1142

TI-2026-27717 Improper access control in Fortinet FortiClientEMS KEVCVSS 3.1CRITICAL 9.1
TI-2024-15227 Missing brute-force protection in Fortinet FortiClientEMS CVSS 3.1CRITICAL 9.8
TI-2025-37318 SQL injection in Fortinet FortiClientEMS CVSS 3.1MEDIUM 6.8
TI-2026-42652 Improper certificate validation in Fortinet FortiClientEMS CVSS 3.1CRITICAL 9.8
TI-2025-16735 Path traversal in Fortinet FortiClientEMS CVSS 3.1MEDIUM 5.0
TI-2026-28692 SQL injection in Fortinet FortiClientEMS CVSS 3.1MEDIUM 6.2

See all 13 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences