What’s Vulnerable › Vulnerabilities

CVE-2026-21643: Fortinet FortiClient EMS SQL Injection Vulnerability

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2026-04-13
• EPSS: 97.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-02-06 · updated 2026-06-17
• Weakness: CWE-89

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.

Affected products

• Fortinet FortiClient EMS: 7.4.4

References

• https://fortiguard.fortinet.com/psirt/FG-IR-25-1142
• https://github.com/0xBlackash/CVE-2026-21643/blob/main/cve-2026-21643.py
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-21643

Get alerted when CVE-2026-21643 or the next vulnerability affects your stack