CVE-2026-21643 · netVigilance record NV26-0081
Fortinet FortiClient EMS SQL Injection
past due
What to do
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA deadline 2026-04-16 · passed 4 months ago · applies to US federal civilian agencies; used elsewhere as a reference SLA
What happened
Fortinet FortiClient EMS contains a SQL injection vulnerability that may allow an unauthenticated attacker to execute unauthorized code or commands via specifically crafted HTTP requests.
Who is affected
Fortinet FortiClient EMS. Affected version ranges are listed in the vendor advisory and the NVD entry linked under Sources.
Weakness class: CWE-89.
Timeline
- Added to CISA KEVExploitation in the wild confirmed by CISA
- CISA remediation deadlinepassed 4 months ago
Sources
- NVD entry for CVE-2026-21643 nvd.nist.gov/vuln/detail/CVE-2026-21643
- CISA Known Exploited Vulnerabilities catalog www.cisa.gov/known-exploited-vulnerabilities-catalog
- fortiguard.fortinet.com fortiguard.fortinet.com/psirt/FG-IR-25-1142
- nvd.nist.gov nvd.nist.gov/vuln/detail/CVE-2026-21643