CVE-2026-21741: Fortinet Fortinac-F

Medium severity, CVSS 4.8. EPSS: 0.2% chance of exploitation in the next 30 days.

An URL Redirection to Untrusted Site ('Open Redirect') vulnerability [CWE-601] vulnerability in Fortinet FortiNAC-F 7.6.0 through 7.6.5, FortiNAC-F 7.4 all versions, FortiNAC-F 7.2 all versions may allow a remote privileged attacker with system administrator role to redirect users to an arbitrary website via crafted CSV file.

Affected products

• Fortinet Fortinac-F: from 7.2.0, before 7.6.6 (fixed in 7.6.6)

Published 2026-04-14. Last modified 2026-06-17.