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Luu, T.J.

🔥 This vulnerability is being actively exploited in the wild (CISA Known Exploited Vulnerabilities catalog)

CVE-2026-21643: Fortinet SQL Injection Vulnerability

infovulnerability🔥 Actively Exploited

security

Source: CISA Known Exploited VulnerabilitiesApril 12, 2026CVE-2026-21643

Summary

Fortinet FortiClient EMS contains a SQL injection vulnerability (a flaw where attackers insert malicious database commands into input fields) that allows unauthenticated attackers to run unauthorized code through specially crafted web requests. This vulnerability is currently being exploited by real attackers in the wild.

Solution / Mitigation

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Vulnerability Details

EPSS (30-day exploit probability)

EPSS: 13.7%

Patch Available

Yes

Exploit Maturity

🔥 Actively Exploited

Disclosure Date

April 12, 2026

Classification

Attack SophisticationModerate

Taxonomy References

CWE (Weakness Type)

CWE-89

CAPEC (Attack Pattern)

CAPEC-66

Monthly digest — independent AI security research

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-21643

First tracked: April 13, 2026 at 02:00 PM

Classified by LLM (prompt v3) · confidence: 95%