CVE-2026-21643
Fortinet FortiClientEMS SQL Injection
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.
INFO
Published Date :
Feb. 6, 2026, 9:15 a.m.
Last Modified :
Feb. 17, 2026, 9:34 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | CRITICAL | 6abe59d8-c742-4dff-8ce8-9b0ca1073da8 | ||||
| CVSS 3.1 | CRITICAL | [email protected] |
Solution
- Update FortiClientEMS to a version that addresses this vulnerability.
- Apply vendor-supplied security patches and updates promptly.
- Validate system integrity after applying updates.
Public PoC/Exploit Available at Github
CVE-2026-21643 has a 2 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-21643.
| URL | Resource |
|---|---|
| https://fortiguard.fortinet.com/psirt/FG-IR-25-1142 | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-21643 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-21643
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Mirror of https://github.com/nomi-sec/PoC-in-GitHub
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') (CWE-89)
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-21643 vulnerability anywhere in the article.
-
TheCyberThrone
Apple Patch Tuesday – February 2026
February 12, 2026Critical Security Updates Across iOS, macOS, and Apple EcosystemApple released a coordinated set of security updates on February 11, 2026, aligning with the global Patch Tuesday cycle ... Read more
-
TheCyberThrone
Critical SQL Injection in FortiClientEMS: CVE-2026-21643
February 12, 2026CVE-2026-21643 is a critical SQL injection vulnerability affecting Fortinet FortiClientEMS version 7.4.4, enabling unauthenticated attackers to execute arbitrary code via crafted HTTP ... Read more
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The Hacker News
Fortinet Patches Critical SQLi Flaw Enabling Unauthenticated Code Execution
Fortinet has released security updates to address a critical flaw impacting FortiClientEMS that could lead to the execution of arbitrary code on susceptible systems. The vulnerability, tracked as CVE- ... Read more
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CybersecurityNews
Critical FortiClientEMS Vulnerability Let Attackers Execute Malicious Code Remotely
FortiClientEMS RCE Vulnerability Fortinet has issued a critical security advisory warning administrators to immediately patch instances of FortiClientEMS, its central management solution for endpoint ... Read more
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Daily CyberSecurity
Endpoint Exposed: Critical FortiClient EMS Flaw (CVSS 9.1) Allows Unauthenticated RCE
Fortinet has issued a high-priority security advisory for its FortiClient Enterprise Management Server (EMS), warning of a critical SQL injection vulnerability that could allow attackers to execute ar ... Read more
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security.nl
Fortinet waarschuwt voor SQL Injection beveiligingslek in FortiClientEMS
Fortinet waarschuwt klanten voor een kritiek beveiligingslek in FortiClientEMS waardoor SQL Injection mogelijk is. Twee jaar geleden werd een andere SQL Injection kwetsbaarheid actief misbruikt bij aa ... Read more
The following table lists the changes that have been made to the
CVE-2026-21643 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Feb. 17, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:fortinet:forticlientems:*:*:*:*:*:*:*:* versions from (including) 7.4.0 up to (excluding) 7.4.5 Added Reference Type Fortinet, Inc.: https://fortiguard.fortinet.com/psirt/FG-IR-25-1142 Types: Vendor Advisory -
New CVE Received by [email protected]
Feb. 06, 2026
Action Type Old Value New Value Added 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. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-89 Added Reference https://fortiguard.fortinet.com/psirt/FG-IR-25-1142