Critical severity9.8CISA KEVNVD Advisory· Published Feb 6, 2026· Updated Apr 16, 2026
CVE-2026-21643
CVE-2026-21643
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2cpe:2.3:a:fortinet:forticlientems:7.4.4:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:fortinet:forticlientems:7.4.4:*:*:*:*:*:*:*
- (no CPE)range: =7.4.4
Patches
Vulnerability mechanics
References
3- github.com/0xBlackash/CVE-2026-21643/blob/main/cve-2026-21643.pynvdExploit
- fortiguard.fortinet.com/psirt/FG-IR-25-1142nvdVendor Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalognvdUS Government Resource
News mentions
4- 3 Recently Patched Fortinet FortiSandbox Vulnerabilities in Hacker CrosshairsSecurityWeek · Jun 17, 2026
- Critical Fortinet FortiSandbox flaws now exploited in attacksBleepingComputer · Jun 16, 2026
- Fortinet warns of critical RCE flaws in FortiSandbox and FortiAuthenticatorBleepingComputer · May 12, 2026
- Fortinet Releases Emergency Patch After FortiClient EMS Bug Is ExploitedInfosecurity Magazine · Apr 7, 2026